Home / 135,624.60-187,123.97-79,025.04

Finding the Fourth Proportional to 135,624.60, 187,123.97 and 79,025.04

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Solution

The fourth proportional to 135,624.60, 187,123.97 and 79,025.04 is: 109,032.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,624.60 : 187,123.97 = 79,025.04 : x
  2. Step 2: Convert to fraction form
    135,624.60/187,123.97 = 79,025.04/x
  3. Step 3: Cross multiply
    135,624.60x = 187,123.97 × 79,025.04
  4. Step 4: Simplify right side
    135,624.60x = 14,787,478,819.08
  5. Step 5: Solve for x
    x = 14,787,478,819.08/135,624.60
  6. Step 6: Final answer
    x = 109,032.42

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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.