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Finding the Fourth Proportional to 132,649, 183,211.14 and 87,859.24

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Solution

The fourth proportional to 132,649, 183,211.14 and 87,859.24 is: 121,348.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,649 : 183,211.14 = 87,859.24 : x
  2. Step 2: Convert to fraction form
    132,649/183,211.14 = 87,859.24/x
  3. Step 3: Cross multiply
    132,649x = 183,211.14 × 87,859.24
  4. Step 4: Simplify right side
    132,649x = 16,096,791,519.93
  5. Step 5: Solve for x
    x = 16,096,791,519.93/132,649
  6. Step 6: Final answer
    x = 121,348.76

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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.