Home / 99,838.85-137,778.17-54,518.00

Finding the Fourth Proportional to 99,838.85, 137,778.17 and 54,518.00

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Solution

The fourth proportional to 99,838.85, 137,778.17 and 54,518.00 is: 75,235.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,838.85 : 137,778.17 = 54,518.00 : x
  2. Step 2: Convert to fraction form
    99,838.85/137,778.17 = 54,518.00/x
  3. Step 3: Cross multiply
    99,838.85x = 137,778.17 × 54,518.00
  4. Step 4: Simplify right side
    99,838.85x = 7,511,389,310.58
  5. Step 5: Solve for x
    x = 7,511,389,310.58/99,838.85
  6. Step 6: Final answer
    x = 75,235.14

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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.