Home / 159,781.20-220,502.66-88,165.83

Finding the Fourth Proportional to 159,781.20, 220,502.66 and 88,165.83

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Solution

The fourth proportional to 159,781.20, 220,502.66 and 88,165.83 is: 121,671.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,781.20 : 220,502.66 = 88,165.83 : x
  2. Step 2: Convert to fraction form
    159,781.20/220,502.66 = 88,165.83/x
  3. Step 3: Cross multiply
    159,781.20x = 220,502.66 × 88,165.83
  4. Step 4: Simplify right side
    159,781.20x = 19,440,800,421.83
  5. Step 5: Solve for x
    x = 19,440,800,421.83/159,781.20
  6. Step 6: Final answer
    x = 121,671.39

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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.