Home / 105,010.10-157,515.15-38,428.10

Finding the Fourth Proportional to 105,010.10, 157,515.15 and 38,428.10

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Solution

The fourth proportional to 105,010.10, 157,515.15 and 38,428.10 is: 57,642.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,010.10 : 157,515.15 = 38,428.10 : x
  2. Step 2: Convert to fraction form
    105,010.10/157,515.15 = 38,428.10/x
  3. Step 3: Cross multiply
    105,010.10x = 157,515.15 × 38,428.10
  4. Step 4: Simplify right side
    105,010.10x = 6,053,007,935.72
  5. Step 5: Solve for x
    x = 6,053,007,935.72/105,010.10
  6. Step 6: Final answer
    x = 57,642.15

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.