Home / 127,229.10-190,843.65-89,709.90

Finding the Fourth Proportional to 127,229.10, 190,843.65 and 89,709.90

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Solution

The fourth proportional to 127,229.10, 190,843.65 and 89,709.90 is: 134,564.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,229.10 : 190,843.65 = 89,709.90 : x
  2. Step 2: Convert to fraction form
    127,229.10/190,843.65 = 89,709.90/x
  3. Step 3: Cross multiply
    127,229.10x = 190,843.65 × 89,709.90
  4. Step 4: Simplify right side
    127,229.10x = 17,120,564,757.14
  5. Step 5: Solve for x
    x = 17,120,564,757.14/127,229.10
  6. Step 6: Final answer
    x = 134,564.85

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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.