Home / 132,761.76-183,151.28-87,427.68

Finding the Fourth Proportional to 132,761.76, 183,151.28 and 87,427.68

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Solution

The fourth proportional to 132,761.76, 183,151.28 and 87,427.68 is: 120,610.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,761.76 : 183,151.28 = 87,427.68 : x
  2. Step 2: Convert to fraction form
    132,761.76/183,151.28 = 87,427.68/x
  3. Step 3: Cross multiply
    132,761.76x = 183,151.28 × 87,427.68
  4. Step 4: Simplify right side
    132,761.76x = 16,012,491,499.43
  5. Step 5: Solve for x
    x = 16,012,491,499.43/132,761.76
  6. Step 6: Final answer
    x = 120,610.72

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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.