Home / 159,003.18-219,437.85-108,128.76

Finding the Fourth Proportional to 159,003.18, 219,437.85 and 108,128.76

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Solution

The fourth proportional to 159,003.18, 219,437.85 and 108,128.76 is: 149,226.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,003.18 : 219,437.85 = 108,128.76 : x
  2. Step 2: Convert to fraction form
    159,003.18/219,437.85 = 108,128.76/x
  3. Step 3: Cross multiply
    159,003.18x = 219,437.85 × 108,128.76
  4. Step 4: Simplify right side
    159,003.18x = 23,727,542,617.57
  5. Step 5: Solve for x
    x = 23,727,542,617.57/159,003.18
  6. Step 6: Final answer
    x = 149,226.84

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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.