Home / 132,780.72-183,246.44-81,119.92

Finding the Fourth Proportional to 132,780.72, 183,246.44 and 81,119.92

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Solution

The fourth proportional to 132,780.72, 183,246.44 and 81,119.92 is: 111,951.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,780.72 : 183,246.44 = 81,119.92 : x
  2. Step 2: Convert to fraction form
    132,780.72/183,246.44 = 81,119.92/x
  3. Step 3: Cross multiply
    132,780.72x = 183,246.44 × 81,119.92
  4. Step 4: Simplify right side
    132,780.72x = 14,864,936,553.08
  5. Step 5: Solve for x
    x = 14,864,936,553.08/132,780.72
  6. Step 6: Final answer
    x = 111,951.02

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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.