Home / 138,765.62-191,366.55-92,115.95

Finding the Fourth Proportional to 138,765.62, 191,366.55 and 92,115.95

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Solution

The fourth proportional to 138,765.62, 191,366.55 and 92,115.95 is: 127,033.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,765.62 : 191,366.55 = 92,115.95 : x
  2. Step 2: Convert to fraction form
    138,765.62/191,366.55 = 92,115.95/x
  3. Step 3: Cross multiply
    138,765.62x = 191,366.55 × 92,115.95
  4. Step 4: Simplify right side
    138,765.62x = 17,627,911,551.47
  5. Step 5: Solve for x
    x = 17,627,911,551.47/138,765.62
  6. Step 6: Final answer
    x = 127,033.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.