Home / 236,785.31-326,758.38-129,355.82

Finding the Fourth Proportional to 236,785.31, 326,758.38 and 129,355.82

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Solution

The fourth proportional to 236,785.31, 326,758.38 and 129,355.82 is: 178,508.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,785.31 : 326,758.38 = 129,355.82 : x
  2. Step 2: Convert to fraction form
    236,785.31/326,758.38 = 129,355.82/x
  3. Step 3: Cross multiply
    236,785.31x = 326,758.38 × 129,355.82
  4. Step 4: Simplify right side
    236,785.31x = 42,268,098,186.77
  5. Step 5: Solve for x
    x = 42,268,098,186.77/236,785.31
  6. Step 6: Final answer
    x = 178,508.11

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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.