Home / 80,158.76-120,222.23-23,239.36

Finding the Fourth Proportional to 80,158.76, 120,222.23 and 23,239.36

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Solution

The fourth proportional to 80,158.76, 120,222.23 and 23,239.36 is: 34,854.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,158.76 : 120,222.23 = 23,239.36 : x
  2. Step 2: Convert to fraction form
    80,158.76/120,222.23 = 23,239.36/x
  3. Step 3: Cross multiply
    80,158.76x = 120,222.23 × 23,239.36
  4. Step 4: Simplify right side
    80,158.76x = 2,793,887,040.80
  5. Step 5: Solve for x
    x = 2,793,887,040.80/80,158.76
  6. Step 6: Final answer
    x = 34,854.42

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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.