Home / 158,179.33-237,221.92-86,120.72

Finding the Fourth Proportional to 158,179.33, 237,221.92 and 86,120.72

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Solution

The fourth proportional to 158,179.33, 237,221.92 and 86,120.72 is: 129,155.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,179.33 : 237,221.92 = 86,120.72 : x
  2. Step 2: Convert to fraction form
    158,179.33/237,221.92 = 86,120.72/x
  3. Step 3: Cross multiply
    158,179.33x = 237,221.92 × 86,120.72
  4. Step 4: Simplify right side
    158,179.33x = 20,429,721,876.88
  5. Step 5: Solve for x
    x = 20,429,721,876.88/158,179.33
  6. Step 6: Final answer
    x = 129,155.44

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1.5x scale

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.