Home / 133,029.10-199,543.65-115,921.90

Finding the Fourth Proportional to 133,029.10, 199,543.65 and 115,921.90

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Solution

The fourth proportional to 133,029.10, 199,543.65 and 115,921.90 is: 173,882.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,029.10 : 199,543.65 = 115,921.90 : x
  2. Step 2: Convert to fraction form
    133,029.10/199,543.65 = 115,921.90/x
  3. Step 3: Cross multiply
    133,029.10x = 199,543.65 × 115,921.90
  4. Step 4: Simplify right side
    133,029.10x = 23,131,479,040.94
  5. Step 5: Solve for x
    x = 23,131,479,040.94/133,029.10
  6. Step 6: Final answer
    x = 173,882.85

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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.