Home / 90,732.03-136,108.98-38,134.68

Finding the Fourth Proportional to 90,732.03, 136,108.98 and 38,134.68

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Solution

The fourth proportional to 90,732.03, 136,108.98 and 38,134.68 is: 57,206.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,732.03 : 136,108.98 = 38,134.68 : x
  2. Step 2: Convert to fraction form
    90,732.03/136,108.98 = 38,134.68/x
  3. Step 3: Cross multiply
    90,732.03x = 136,108.98 × 38,134.68
  4. Step 4: Simplify right side
    90,732.03x = 5,190,472,397.43
  5. Step 5: Solve for x
    x = 5,190,472,397.43/90,732.03
  6. Step 6: Final answer
    x = 57,206.62

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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.