Home / 236,711.56-326,660.20-129,281.64

Finding the Fourth Proportional to 236,711.56, 326,660.20 and 129,281.64

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Solution

The fourth proportional to 236,711.56, 326,660.20 and 129,281.64 is: 178,407.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,711.56 : 326,660.20 = 129,281.64 : x
  2. Step 2: Convert to fraction form
    236,711.56/326,660.20 = 129,281.64/x
  3. Step 3: Cross multiply
    236,711.56x = 326,660.20 × 129,281.64
  4. Step 4: Simplify right side
    236,711.56x = 42,231,166,378.73
  5. Step 5: Solve for x
    x = 42,231,166,378.73/236,711.56
  6. Step 6: Final answer
    x = 178,407.71

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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.