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Finding the Fourth Proportional to 172,479.20, 238,020.96 and 97,027.76

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Solution

The fourth proportional to 172,479.20, 238,020.96 and 97,027.76 is: 133,898.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,479.20 : 238,020.96 = 97,027.76 : x
  2. Step 2: Convert to fraction form
    172,479.20/238,020.96 = 97,027.76/x
  3. Step 3: Cross multiply
    172,479.20x = 238,020.96 × 97,027.76
  4. Step 4: Simplify right side
    172,479.20x = 23,094,640,581.85
  5. Step 5: Solve for x
    x = 23,094,640,581.85/172,479.20
  6. Step 6: Final answer
    x = 133,898.12

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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.