Home / 118,115.40-177,190.95-38,126.64

Finding the Fourth Proportional to 118,115.40, 177,190.95 and 38,126.64

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Solution

The fourth proportional to 118,115.40, 177,190.95 and 38,126.64 is: 57,195.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,115.40 : 177,190.95 = 38,126.64 : x
  2. Step 2: Convert to fraction form
    118,115.40/177,190.95 = 38,126.64/x
  3. Step 3: Cross multiply
    118,115.40x = 177,190.95 × 38,126.64
  4. Step 4: Simplify right side
    118,115.40x = 6,755,695,561.91
  5. Step 5: Solve for x
    x = 6,755,695,561.91/118,115.40
  6. Step 6: Final answer
    x = 57,195.72

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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.