Home / 109,436.57-164,149.39-38,337.20

Finding the Fourth Proportional to 109,436.57, 164,149.39 and 38,337.20

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Solution

The fourth proportional to 109,436.57, 164,149.39 and 38,337.20 is: 57,503.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,436.57 : 164,149.39 = 38,337.20 : x
  2. Step 2: Convert to fraction form
    109,436.57/164,149.39 = 38,337.20/x
  3. Step 3: Cross multiply
    109,436.57x = 164,149.39 × 38,337.20
  4. Step 4: Simplify right side
    109,436.57x = 6,293,027,621.40
  5. Step 5: Solve for x
    x = 6,293,027,621.40/109,436.57
  6. Step 6: Final answer
    x = 57,503.88

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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.