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Finding the Fourth Proportional to 132,297.78, 182,572.20 and 71,868.88

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Solution

The fourth proportional to 132,297.78, 182,572.20 and 71,868.88 is: 99,179.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,297.78 : 182,572.20 = 71,868.88 : x
  2. Step 2: Convert to fraction form
    132,297.78/182,572.20 = 71,868.88/x
  3. Step 3: Cross multiply
    132,297.78x = 182,572.20 × 71,868.88
  4. Step 4: Simplify right side
    132,297.78x = 13,121,259,076.71
  5. Step 5: Solve for x
    x = 13,121,259,076.71/132,297.78
  6. Step 6: Final answer
    x = 99,179.74

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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.