Home / 165,097.40-247,562.94-80,863.88

Finding the Fourth Proportional to 165,097.40, 247,562.94 and 80,863.88

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Solution

The fourth proportional to 165,097.40, 247,562.94 and 80,863.88 is: 121,255.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,097.40 : 247,562.94 = 80,863.88 : x
  2. Step 2: Convert to fraction form
    165,097.40/247,562.94 = 80,863.88/x
  3. Step 3: Cross multiply
    165,097.40x = 247,562.94 × 80,863.88
  4. Step 4: Simplify right side
    165,097.40x = 20,018,899,872.61
  5. Step 5: Solve for x
    x = 20,018,899,872.61/165,097.40
  6. Step 6: Final answer
    x = 121,255.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.