Home / 99,386.68-137,149.66-54,064.72

Finding the Fourth Proportional to 99,386.68, 137,149.66 and 54,064.72

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Solution

The fourth proportional to 99,386.68, 137,149.66 and 54,064.72 is: 74,607.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,386.68 : 137,149.66 = 54,064.72 : x
  2. Step 2: Convert to fraction form
    99,386.68/137,149.66 = 54,064.72/x
  3. Step 3: Cross multiply
    99,386.68x = 137,149.66 × 54,064.72
  4. Step 4: Simplify right side
    99,386.68x = 7,414,957,966.00
  5. Step 5: Solve for x
    x = 7,414,957,966.00/99,386.68
  6. Step 6: Final answer
    x = 74,607.16

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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.