Home / 148,499.80-222,749.70-138,002.20

Finding the Fourth Proportional to 148,499.80, 222,749.70 and 138,002.20

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Solution

The fourth proportional to 148,499.80, 222,749.70 and 138,002.20 is: 207,003.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,499.80 : 222,749.70 = 138,002.20 : x
  2. Step 2: Convert to fraction form
    148,499.80/222,749.70 = 138,002.20/x
  3. Step 3: Cross multiply
    148,499.80x = 222,749.70 × 138,002.20
  4. Step 4: Simplify right side
    148,499.80x = 30,739,948,649.34
  5. Step 5: Solve for x
    x = 30,739,948,649.34/148,499.80
  6. Step 6: Final answer
    x = 207,003.30

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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.