Home / 148,456.16-222,615.12-86,144.48

Finding the Fourth Proportional to 148,456.16, 222,615.12 and 86,144.48

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Solution

The fourth proportional to 148,456.16, 222,615.12 and 86,144.48 is: 129,176.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,456.16 : 222,615.12 = 86,144.48 : x
  2. Step 2: Convert to fraction form
    148,456.16/222,615.12 = 86,144.48/x
  3. Step 3: Cross multiply
    148,456.16x = 222,615.12 × 86,144.48
  4. Step 4: Simplify right side
    148,456.16x = 19,177,063,752.54
  5. Step 5: Solve for x
    x = 19,177,063,752.54/148,456.16
  6. Step 6: Final answer
    x = 129,176.61

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1.5x scale

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.