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Finding the Fourth Proportional to 132,179.01, 182,323.87 and 78,425.88

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Solution

The fourth proportional to 132,179.01, 182,323.87 and 78,425.88 is: 108,178.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,179.01 : 182,323.87 = 78,425.88 : x
  2. Step 2: Convert to fraction form
    132,179.01/182,323.87 = 78,425.88/x
  3. Step 3: Cross multiply
    132,179.01x = 182,323.87 × 78,425.88
  4. Step 4: Simplify right side
    132,179.01x = 14,298,909,949.76
  5. Step 5: Solve for x
    x = 14,298,909,949.76/132,179.01
  6. Step 6: Final answer
    x = 108,178.37

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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.