Home / 159,439.38-220,018.04-99,008.73

Finding the Fourth Proportional to 159,439.38, 220,018.04 and 99,008.73

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Solution

The fourth proportional to 159,439.38, 220,018.04 and 99,008.73 is: 136,626.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,439.38 : 220,018.04 = 99,008.73 : x
  2. Step 2: Convert to fraction form
    159,439.38/220,018.04 = 99,008.73/x
  3. Step 3: Cross multiply
    159,439.38x = 220,018.04 × 99,008.73
  4. Step 4: Simplify right side
    159,439.38x = 21,783,706,222.45
  5. Step 5: Solve for x
    x = 21,783,706,222.45/159,439.38
  6. Step 6: Final answer
    x = 136,626.89

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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.