Home / 109,470.13-151,073.03-61,722.45

Finding the Fourth Proportional to 109,470.13, 151,073.03 and 61,722.45

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Solution

The fourth proportional to 109,470.13, 151,073.03 and 61,722.45 is: 85,179.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,470.13 : 151,073.03 = 61,722.45 : x
  2. Step 2: Convert to fraction form
    109,470.13/151,073.03 = 61,722.45/x
  3. Step 3: Cross multiply
    109,470.13x = 151,073.03 × 61,722.45
  4. Step 4: Simplify right side
    109,470.13x = 9,324,597,231.91
  5. Step 5: Solve for x
    x = 9,324,597,231.91/109,470.13
  6. Step 6: Final answer
    x = 85,179.38

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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.