Home / 135,863.19-203,794.65-89,105.13

Finding the Fourth Proportional to 135,863.19, 203,794.65 and 89,105.13

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Solution

The fourth proportional to 135,863.19, 203,794.65 and 89,105.13 is: 133,657.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,863.19 : 203,794.65 = 89,105.13 : x
  2. Step 2: Convert to fraction form
    135,863.19/203,794.65 = 89,105.13/x
  3. Step 3: Cross multiply
    135,863.19x = 203,794.65 × 89,105.13
  4. Step 4: Simplify right side
    135,863.19x = 18,159,148,781.55
  5. Step 5: Solve for x
    x = 18,159,148,781.55/135,863.19
  6. Step 6: Final answer
    x = 133,657.61

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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.