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Finding the Fourth Proportional to 168,159.70, 252,238.64 and 72,082.76

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Solution

The fourth proportional to 168,159.70, 252,238.64 and 72,082.76 is: 108,123.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,159.70 : 252,238.64 = 72,082.76 : x
  2. Step 2: Convert to fraction form
    168,159.70/252,238.64 = 72,082.76/x
  3. Step 3: Cross multiply
    168,159.70x = 252,238.64 × 72,082.76
  4. Step 4: Simplify right side
    168,159.70x = 18,182,057,620.03
  5. Step 5: Solve for x
    x = 18,182,057,620.03/168,159.70
  6. Step 6: Final answer
    x = 108,123.75

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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.