Home / 159,819.18-220,555.78-87,226.04

Finding the Fourth Proportional to 159,819.18, 220,555.78 and 87,226.04

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Solution

The fourth proportional to 159,819.18, 220,555.78 and 87,226.04 is: 120,374.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,819.18 : 220,555.78 = 87,226.04 : x
  2. Step 2: Convert to fraction form
    159,819.18/220,555.78 = 87,226.04/x
  3. Step 3: Cross multiply
    159,819.18x = 220,555.78 × 87,226.04
  4. Step 4: Simplify right side
    159,819.18x = 19,238,207,288.51
  5. Step 5: Solve for x
    x = 19,238,207,288.51/159,819.18
  6. Step 6: Final answer
    x = 120,374.83

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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.