Home / 83,505.03-115,169.76-73,411.89

Finding the Fourth Proportional to 83,505.03, 115,169.76 and 73,411.89

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Solution

The fourth proportional to 83,505.03, 115,169.76 and 73,411.89 is: 101,249.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,505.03 : 115,169.76 = 73,411.89 : x
  2. Step 2: Convert to fraction form
    83,505.03/115,169.76 = 73,411.89/x
  3. Step 3: Cross multiply
    83,505.03x = 115,169.76 × 73,411.89
  4. Step 4: Simplify right side
    83,505.03x = 8,454,829,752.45
  5. Step 5: Solve for x
    x = 8,454,829,752.45/83,505.03
  6. Step 6: Final answer
    x = 101,249.35

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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.