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Finding the Fourth Proportional to 120,034.88, 180,043.68 and 52,573.76

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Solution

The fourth proportional to 120,034.88, 180,043.68 and 52,573.76 is: 78,856.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,034.88 : 180,043.68 = 52,573.76 : x
  2. Step 2: Convert to fraction form
    120,034.88/180,043.68 = 52,573.76/x
  3. Step 3: Cross multiply
    120,034.88x = 180,043.68 × 52,573.76
  4. Step 4: Simplify right side
    120,034.88x = 9,465,573,221.84
  5. Step 5: Solve for x
    x = 9,465,573,221.84/120,034.88
  6. Step 6: Final answer
    x = 78,856.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.