Finding the Fourth Proportional to 100,892.97, 139,235.99 and 62,673.57
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Solution
The fourth proportional to 100,892.97, 139,235.99 and 62,673.57 is: 86,491.82
Step by Step Solution
- Step 1: Write the proportion equation
100,892.97 : 139,235.99 = 62,673.57 : x - Step 2: Convert to fraction form
100,892.97/139,235.99 = 62,673.57/x - Step 3: Cross multiply
100,892.97x = 139,235.99 × 62,673.57 - Step 4: Simplify right side
100,892.97x = 8,726,416,252.42 - Step 5: Solve for x
x = 8,726,416,252.42/100,892.97 - Step 6: Final answer
x = 86,491.82
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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.