Finding the Fourth Proportional to 100,317.62, 138,465.33 and 62,569.46
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Solution
The fourth proportional to 100,317.62, 138,465.33 and 62,569.46 is: 86,362.70
Step by Step Solution
- Step 1: Write the proportion equation
100,317.62 : 138,465.33 = 62,569.46 : x - Step 2: Convert to fraction form
100,317.62/138,465.33 = 62,569.46/x - Step 3: Cross multiply
100,317.62x = 138,465.33 × 62,569.46 - Step 4: Simplify right side
100,317.62x = 8,663,700,926.82 - Step 5: Solve for x
x = 8,663,700,926.82/100,317.62 - Step 6: Final answer
x = 86,362.70
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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.