Home / 148,081.20-222,121.80-138,166.80

Finding the Fourth Proportional to 148,081.20, 222,121.80 and 138,166.80

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Solution

The fourth proportional to 148,081.20, 222,121.80 and 138,166.80 is: 207,250.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,081.20 : 222,121.80 = 138,166.80 : x
  2. Step 2: Convert to fraction form
    148,081.20/222,121.80 = 138,166.80/x
  3. Step 3: Cross multiply
    148,081.20x = 222,121.80 × 138,166.80
  4. Step 4: Simplify right side
    148,081.20x = 30,689,858,316.24
  5. Step 5: Solve for x
    x = 30,689,858,316.24/148,081.20
  6. Step 6: Final answer
    x = 207,250.20

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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.