Finding the Fourth Proportional to 162,702.81, 243,960.77 and 86,707.79
Calculator
Solution
The fourth proportional to 162,702.81, 243,960.77 and 86,707.79 is: 130,011.88
Step by Step Solution
- Step 1: Write the proportion equation
162,702.81 : 243,960.77 = 86,707.79 : x - Step 2: Convert to fraction form
162,702.81/243,960.77 = 86,707.79/x - Step 3: Cross multiply
162,702.81x = 243,960.77 × 86,707.79 - Step 4: Simplify right side
162,702.81x = 21,153,297,560.06 - Step 5: Solve for x
x = 21,153,297,560.06/162,702.81 - Step 6: Final answer
x = 130,011.88
Related Problems
Find fourth proportional to 81,351.41, 121,980.38 and 43,353.89
Half scale
Find fourth proportional to 325,405.62, 487,921.53 and 173,415.57
Double scale
Find fourth proportional to 162,703.81, 243,962.26 and 86,708.79
Similar ratio
Find fourth proportional to 244,054.22, 365,941.15 and 130,061.68
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.