Home / 148,297.34-222,478.82-81,703.20

Finding the Fourth Proportional to 148,297.34, 222,478.82 and 81,703.20

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Solution

The fourth proportional to 148,297.34, 222,478.82 and 81,703.20 is: 122,572.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,297.34 : 222,478.82 = 81,703.20 : x
  2. Step 2: Convert to fraction form
    148,297.34/222,478.82 = 81,703.20/x
  3. Step 3: Cross multiply
    148,297.34x = 222,478.82 × 81,703.20
  4. Step 4: Simplify right side
    148,297.34x = 18,177,231,526.22
  5. Step 5: Solve for x
    x = 18,177,231,526.22/148,297.34
  6. Step 6: Final answer
    x = 122,572.88

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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.