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Finding the Fourth Proportional to 115,042.28, 158,747.02 and 67,286.30

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Solution

The fourth proportional to 115,042.28, 158,747.02 and 67,286.30 is: 92,848.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,042.28 : 158,747.02 = 67,286.30 : x
  2. Step 2: Convert to fraction form
    115,042.28/158,747.02 = 67,286.30/x
  3. Step 3: Cross multiply
    115,042.28x = 158,747.02 × 67,286.30
  4. Step 4: Simplify right side
    115,042.28x = 10,681,499,611.83
  5. Step 5: Solve for x
    x = 10,681,499,611.83/115,042.28
  6. Step 6: Final answer
    x = 92,848.47

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1.5x scale

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.