Home / 133,279.18-199,889.28-38,488.78

Finding the Fourth Proportional to 133,279.18, 199,889.28 and 38,488.78

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Solution

The fourth proportional to 133,279.18, 199,889.28 and 38,488.78 is: 57,724.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,279.18 : 199,889.28 = 38,488.78 : x
  2. Step 2: Convert to fraction form
    133,279.18/199,889.28 = 38,488.78/x
  3. Step 3: Cross multiply
    133,279.18x = 199,889.28 × 38,488.78
  4. Step 4: Simplify right side
    133,279.18x = 7,693,494,522.28
  5. Step 5: Solve for x
    x = 7,693,494,522.28/133,279.18
  6. Step 6: Final answer
    x = 57,724.65

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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.