Finding the Fourth Proportional to 124,012.44, 170,847.86 and 86,221.08
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Solution
The fourth proportional to 124,012.44, 170,847.86 and 86,221.08 is: 118,783.95
Step by Step Solution
- Step 1: Write the proportion equation
124,012.44 : 170,847.86 = 86,221.08 : x - Step 2: Convert to fraction form
124,012.44/170,847.86 = 86,221.08/x - Step 3: Cross multiply
124,012.44x = 170,847.86 × 86,221.08 - Step 4: Simplify right side
124,012.44x = 14,730,687,004.89 - Step 5: Solve for x
x = 14,730,687,004.89/124,012.44 - Step 6: Final answer
x = 118,783.95
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.