Home / 146,311.20-201,909.28-79,243.20

Finding the Fourth Proportional to 146,311.20, 201,909.28 and 79,243.20

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Solution

The fourth proportional to 146,311.20, 201,909.28 and 79,243.20 is: 109,355.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,311.20 : 201,909.28 = 79,243.20 : x
  2. Step 2: Convert to fraction form
    146,311.20/201,909.28 = 79,243.20/x
  3. Step 3: Cross multiply
    146,311.20x = 201,909.28 × 79,243.20
  4. Step 4: Simplify right side
    146,311.20x = 15,999,937,456.90
  5. Step 5: Solve for x
    x = 15,999,937,456.90/146,311.20
  6. Step 6: Final answer
    x = 109,355.52

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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.