Home / 159,538.60-220,242-108,814.78

Finding the Fourth Proportional to 159,538.60, 220,242 and 108,814.78

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Solution

The fourth proportional to 159,538.60, 220,242 and 108,814.78 is: 150,218.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,538.60 : 220,242 = 108,814.78 : x
  2. Step 2: Convert to fraction form
    159,538.60/220,242 = 108,814.78/x
  3. Step 3: Cross multiply
    159,538.60x = 220,242 × 108,814.78
  4. Step 4: Simplify right side
    159,538.60x = 23,965,584,776.76
  5. Step 5: Solve for x
    x = 23,965,584,776.76/159,538.60
  6. Step 6: Final answer
    x = 150,218.10

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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.