Home / 113,769.85-170,516.40-80,499.52

Finding the Fourth Proportional to 113,769.85, 170,516.40 and 80,499.52

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Solution

The fourth proportional to 113,769.85, 170,516.40 and 80,499.52 is: 120,651.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,769.85 : 170,516.40 = 80,499.52 : x
  2. Step 2: Convert to fraction form
    113,769.85/170,516.40 = 80,499.52/x
  3. Step 3: Cross multiply
    113,769.85x = 170,516.40 × 80,499.52
  4. Step 4: Simplify right side
    113,769.85x = 13,726,488,352.13
  5. Step 5: Solve for x
    x = 13,726,488,352.13/113,769.85
  6. Step 6: Final answer
    x = 120,651.37

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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.