Home / 115,422.20-173,133.30-76,023.80

Finding the Fourth Proportional to 115,422.20, 173,133.30 and 76,023.80

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Solution

The fourth proportional to 115,422.20, 173,133.30 and 76,023.80 is: 114,035.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,422.20 : 173,133.30 = 76,023.80 : x
  2. Step 2: Convert to fraction form
    115,422.20/173,133.30 = 76,023.80/x
  3. Step 3: Cross multiply
    115,422.20x = 173,133.30 × 76,023.80
  4. Step 4: Simplify right side
    115,422.20x = 13,162,251,372.54
  5. Step 5: Solve for x
    x = 13,162,251,372.54/115,422.20
  6. Step 6: Final answer
    x = 114,035.70

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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.