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Finding the Fourth Proportional to 174,425.77, 240,638.87 and 100,789.55

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Solution

The fourth proportional to 174,425.77, 240,638.87 and 100,789.55 is: 139,049.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,425.77 : 240,638.87 = 100,789.55 : x
  2. Step 2: Convert to fraction form
    174,425.77/240,638.87 = 100,789.55/x
  3. Step 3: Cross multiply
    174,425.77x = 240,638.87 × 100,789.55
  4. Step 4: Simplify right side
    174,425.77x = 24,253,881,964.64
  5. Step 5: Solve for x
    x = 24,253,881,964.64/174,425.77
  6. Step 6: Final answer
    x = 139,049.88

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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.