Home / 117,937.10-176,948.31-72,905.78

Finding the Fourth Proportional to 117,937.10, 176,948.31 and 72,905.78

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Solution

The fourth proportional to 117,937.10, 176,948.31 and 72,905.78 is: 109,385.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,937.10 : 176,948.31 = 72,905.78 : x
  2. Step 2: Convert to fraction form
    117,937.10/176,948.31 = 72,905.78/x
  3. Step 3: Cross multiply
    117,937.10x = 176,948.31 × 72,905.78
  4. Step 4: Simplify right side
    117,937.10x = 12,900,554,560.23
  5. Step 5: Solve for x
    x = 12,900,554,560.23/117,937.10
  6. Step 6: Final answer
    x = 109,385.04

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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.