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Finding the Fourth Proportional to 162,959.20, 224,890 and 91,339.68

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Solution

The fourth proportional to 162,959.20, 224,890 and 91,339.68 is: 126,052.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,959.20 : 224,890 = 91,339.68 : x
  2. Step 2: Convert to fraction form
    162,959.20/224,890 = 91,339.68/x
  3. Step 3: Cross multiply
    162,959.20x = 224,890 × 91,339.68
  4. Step 4: Simplify right side
    162,959.20x = 20,541,380,635.20
  5. Step 5: Solve for x
    x = 20,541,380,635.20/162,959.20
  6. Step 6: Final answer
    x = 126,052.29

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1.5x scale

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.