Home / 122,143.32-182,997.50-74,735.24

Finding the Fourth Proportional to 122,143.32, 182,997.50 and 74,735.24

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Solution

The fourth proportional to 122,143.32, 182,997.50 and 74,735.24 is: 111,969.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,143.32 : 182,997.50 = 74,735.24 : x
  2. Step 2: Convert to fraction form
    122,143.32/182,997.50 = 74,735.24/x
  3. Step 3: Cross multiply
    122,143.32x = 182,997.50 × 74,735.24
  4. Step 4: Simplify right side
    122,143.32x = 13,676,360,793.24
  5. Step 5: Solve for x
    x = 13,676,360,793.24/122,143.32
  6. Step 6: Final answer
    x = 111,969.78

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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.