Home / 99,182.20-136,871.28-54,470.20

Finding the Fourth Proportional to 99,182.20, 136,871.28 and 54,470.20

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Solution

The fourth proportional to 99,182.20, 136,871.28 and 54,470.20 is: 75,168.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,182.20 : 136,871.28 = 54,470.20 : x
  2. Step 2: Convert to fraction form
    99,182.20/136,871.28 = 54,470.20/x
  3. Step 3: Cross multiply
    99,182.20x = 136,871.28 × 54,470.20
  4. Step 4: Simplify right side
    99,182.20x = 7,455,405,995.86
  5. Step 5: Solve for x
    x = 7,455,405,995.86/99,182.20
  6. Step 6: Final answer
    x = 75,168.79

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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.