Home / 143,981.52-198,708.30-80,325.24

Finding the Fourth Proportional to 143,981.52, 198,708.30 and 80,325.24

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Solution

The fourth proportional to 143,981.52, 198,708.30 and 80,325.24 is: 110,856.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,981.52 : 198,708.30 = 80,325.24 : x
  2. Step 2: Convert to fraction form
    143,981.52/198,708.30 = 80,325.24/x
  3. Step 3: Cross multiply
    143,981.52x = 198,708.30 × 80,325.24
  4. Step 4: Simplify right side
    143,981.52x = 15,961,291,887.49
  5. Step 5: Solve for x
    x = 15,961,291,887.49/143,981.52
  6. Step 6: Final answer
    x = 110,856.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.