Home / 132,882.12-183,331.32-85,161.76

Finding the Fourth Proportional to 132,882.12, 183,331.32 and 85,161.76

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Solution

The fourth proportional to 132,882.12, 183,331.32 and 85,161.76 is: 117,493.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,882.12 : 183,331.32 = 85,161.76 : x
  2. Step 2: Convert to fraction form
    132,882.12/183,331.32 = 85,161.76/x
  3. Step 3: Cross multiply
    132,882.12x = 183,331.32 × 85,161.76
  4. Step 4: Simplify right side
    132,882.12x = 15,612,817,874.32
  5. Step 5: Solve for x
    x = 15,612,817,874.32/132,882.12
  6. Step 6: Final answer
    x = 117,493.74

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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.