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Finding the Fourth Proportional to 122,627.65, 169,227.27 and 74,230.69

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Solution

The fourth proportional to 122,627.65, 169,227.27 and 74,230.69 is: 102,439.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,627.65 : 169,227.27 = 74,230.69 : x
  2. Step 2: Convert to fraction form
    122,627.65/169,227.27 = 74,230.69/x
  3. Step 3: Cross multiply
    122,627.65x = 169,227.27 × 74,230.69
  4. Step 4: Simplify right side
    122,627.65x = 12,561,856,595.85
  5. Step 5: Solve for x
    x = 12,561,856,595.85/122,627.65
  6. Step 6: Final answer
    x = 102,439.02

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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.