Finding the Fourth Proportional to 112,913.14, 155,820.13 and 62,612.14
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Solution
The fourth proportional to 112,913.14, 155,820.13 and 62,612.14 is: 86,404.75
Step by Step Solution
- Step 1: Write the proportion equation
112,913.14 : 155,820.13 = 62,612.14 : x - Step 2: Convert to fraction form
112,913.14/155,820.13 = 62,612.14/x - Step 3: Cross multiply
112,913.14x = 155,820.13 × 62,612.14 - Step 4: Simplify right side
112,913.14x = 9,756,231,892.65 - Step 5: Solve for x
x = 9,756,231,892.65/112,913.14 - Step 6: Final answer
x = 86,404.75
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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.