Home / 238,906.80-358,375.86-89,143.38

Finding the Fourth Proportional to 238,906.80, 358,375.86 and 89,143.38

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Solution

The fourth proportional to 238,906.80, 358,375.86 and 89,143.38 is: 133,720.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,906.80 : 358,375.86 = 89,143.38 : x
  2. Step 2: Convert to fraction form
    238,906.80/358,375.86 = 89,143.38/x
  3. Step 3: Cross multiply
    238,906.80x = 358,375.86 × 89,143.38
  4. Step 4: Simplify right side
    238,906.80x = 31,946,835,470.81
  5. Step 5: Solve for x
    x = 31,946,835,470.81/238,906.80
  6. Step 6: Final answer
    x = 133,720.91

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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.