Home / 109,655.82-151,332.03-61,891.74

Finding the Fourth Proportional to 109,655.82, 151,332.03 and 61,891.74

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Solution

The fourth proportional to 109,655.82, 151,332.03 and 61,891.74 is: 85,414.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,655.82 : 151,332.03 = 61,891.74 : x
  2. Step 2: Convert to fraction form
    109,655.82/151,332.03 = 61,891.74/x
  3. Step 3: Cross multiply
    109,655.82x = 151,332.03 × 61,891.74
  4. Step 4: Simplify right side
    109,655.82x = 9,366,202,654.43
  5. Step 5: Solve for x
    x = 9,366,202,654.43/109,655.82
  6. Step 6: Final answer
    x = 85,414.55

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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.