Home / 99,939.84-137,977.02-62,265.12

Finding the Fourth Proportional to 99,939.84, 137,977.02 and 62,265.12

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Solution

The fourth proportional to 99,939.84, 137,977.02 and 62,265.12 is: 85,963.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,939.84 : 137,977.02 = 62,265.12 : x
  2. Step 2: Convert to fraction form
    99,939.84/137,977.02 = 62,265.12/x
  3. Step 3: Cross multiply
    99,939.84x = 137,977.02 × 62,265.12
  4. Step 4: Simplify right side
    99,939.84x = 8,591,155,707.54
  5. Step 5: Solve for x
    x = 8,591,155,707.54/99,939.84
  6. Step 6: Final answer
    x = 85,963.27

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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.