Home / 83,414.10-124,829.55-76,415.70

Finding the Fourth Proportional to 83,414.10, 124,829.55 and 76,415.70

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Solution

The fourth proportional to 83,414.10, 124,829.55 and 76,415.70 is: 114,356.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,414.10 : 124,829.55 = 76,415.70 : x
  2. Step 2: Convert to fraction form
    83,414.10/124,829.55 = 76,415.70/x
  3. Step 3: Cross multiply
    83,414.10x = 124,829.55 × 76,415.70
  4. Step 4: Simplify right side
    83,414.10x = 9,538,937,443.94
  5. Step 5: Solve for x
    x = 9,538,937,443.94/83,414.10
  6. Step 6: Final answer
    x = 114,356.42

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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.