Home / 135,956.34-203,724.92-72,784.85

Finding the Fourth Proportional to 135,956.34, 203,724.92 and 72,784.85

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Solution

The fourth proportional to 135,956.34, 203,724.92 and 72,784.85 is: 109,065.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,956.34 : 203,724.92 = 72,784.85 : x
  2. Step 2: Convert to fraction form
    135,956.34/203,724.92 = 72,784.85/x
  3. Step 3: Cross multiply
    135,956.34x = 203,724.92 × 72,784.85
  4. Step 4: Simplify right side
    135,956.34x = 14,828,086,906.80
  5. Step 5: Solve for x
    x = 14,828,086,906.80/135,956.34
  6. Step 6: Final answer
    x = 109,065.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.