Finding the Fourth Proportional to 125,645.60, 173,386.14 and 71,935.62
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Solution
The fourth proportional to 125,645.60, 173,386.14 and 71,935.62 is: 99,268.42
Step by Step Solution
- Step 1: Write the proportion equation
125,645.60 : 173,386.14 = 71,935.62 : x - Step 2: Convert to fraction form
125,645.60/173,386.14 = 71,935.62/x - Step 3: Cross multiply
125,645.60x = 173,386.14 × 71,935.62 - Step 4: Simplify right side
125,645.60x = 12,472,639,480.31 - Step 5: Solve for x
x = 12,472,639,480.31/125,645.60 - Step 6: Final answer
x = 99,268.42
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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.