Finding the Fourth Proportional to 140,303.18, 193,622.64 and 76,645.08
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Solution
The fourth proportional to 140,303.18, 193,622.64 and 76,645.08 is: 105,772.53
Step by Step Solution
- Step 1: Write the proportion equation
140,303.18 : 193,622.64 = 76,645.08 : x - Step 2: Convert to fraction form
140,303.18/193,622.64 = 76,645.08/x - Step 3: Cross multiply
140,303.18x = 193,622.64 × 76,645.08 - Step 4: Simplify right side
140,303.18x = 14,840,222,223.97 - Step 5: Solve for x
x = 14,840,222,223.97/140,303.18 - Step 6: Final answer
x = 105,772.53
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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.