Home / 133,013.52-199,414.56-76,790.04

Finding the Fourth Proportional to 133,013.52, 199,414.56 and 76,790.04

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Solution

The fourth proportional to 133,013.52, 199,414.56 and 76,790.04 is: 115,124.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,013.52 : 199,414.56 = 76,790.04 : x
  2. Step 2: Convert to fraction form
    133,013.52/199,414.56 = 76,790.04/x
  3. Step 3: Cross multiply
    133,013.52x = 199,414.56 × 76,790.04
  4. Step 4: Simplify right side
    133,013.52x = 15,313,052,038.98
  5. Step 5: Solve for x
    x = 15,313,052,038.98/133,013.52
  6. Step 6: Final answer
    x = 115,124.03

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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.