Home / 99,129.17-136,798.38-53,807.15

Finding the Fourth Proportional to 99,129.17, 136,798.38 and 53,807.15

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Solution

The fourth proportional to 99,129.17, 136,798.38 and 53,807.15 is: 74,253.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,129.17 : 136,798.38 = 53,807.15 : x
  2. Step 2: Convert to fraction form
    99,129.17/136,798.38 = 53,807.15/x
  3. Step 3: Cross multiply
    99,129.17x = 136,798.38 × 53,807.15
  4. Step 4: Simplify right side
    99,129.17x = 7,360,731,294.41
  5. Step 5: Solve for x
    x = 7,360,731,294.41/99,129.17
  6. Step 6: Final answer
    x = 74,253.94

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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.