Home / 127,438.56-191,165.28-38,694.96

Finding the Fourth Proportional to 127,438.56, 191,165.28 and 38,694.96

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Solution

The fourth proportional to 127,438.56, 191,165.28 and 38,694.96 is: 58,044.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,438.56 : 191,165.28 = 38,694.96 : x
  2. Step 2: Convert to fraction form
    127,438.56/191,165.28 = 38,694.96/x
  3. Step 3: Cross multiply
    127,438.56x = 191,165.28 × 38,694.96
  4. Step 4: Simplify right side
    127,438.56x = 7,397,132,862.99
  5. Step 5: Solve for x
    x = 7,397,132,862.99/127,438.56
  6. Step 6: Final answer
    x = 58,044.70

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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.