Home / 146,007.20-219,471.60-137,712.80

Finding the Fourth Proportional to 146,007.20, 219,471.60 and 137,712.80

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Solution

The fourth proportional to 146,007.20, 219,471.60 and 137,712.80 is: 207,003.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,007.20 : 219,471.60 = 137,712.80 : x
  2. Step 2: Convert to fraction form
    146,007.20/219,471.60 = 137,712.80/x
  3. Step 3: Cross multiply
    146,007.20x = 219,471.60 × 137,712.80
  4. Step 4: Simplify right side
    146,007.20x = 30,224,048,556.48
  5. Step 5: Solve for x
    x = 30,224,048,556.48/146,007.20
  6. Step 6: Final answer
    x = 207,003.82

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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.