Home / 146,723.68-220,001.11-78,250.77

Finding the Fourth Proportional to 146,723.68, 220,001.11 and 78,250.77

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Solution

The fourth proportional to 146,723.68, 220,001.11 and 78,250.77 is: 117,331.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,723.68 : 220,001.11 = 78,250.77 : x
  2. Step 2: Convert to fraction form
    146,723.68/220,001.11 = 78,250.77/x
  3. Step 3: Cross multiply
    146,723.68x = 220,001.11 × 78,250.77
  4. Step 4: Simplify right side
    146,723.68x = 17,215,256,258.35
  5. Step 5: Solve for x
    x = 17,215,256,258.35/146,723.68
  6. Step 6: Final answer
    x = 117,331.14

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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.