Home / 148,617.92-222,631.63-81,892.55

Finding the Fourth Proportional to 148,617.92, 222,631.63 and 81,892.55

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Solution

The fourth proportional to 148,617.92, 222,631.63 and 81,892.55 is: 122,676.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,617.92 : 222,631.63 = 81,892.55 : x
  2. Step 2: Convert to fraction form
    148,617.92/222,631.63 = 81,892.55/x
  3. Step 3: Cross multiply
    148,617.92x = 222,631.63 × 81,892.55
  4. Step 4: Simplify right side
    148,617.92x = 18,231,872,243.20
  5. Step 5: Solve for x
    x = 18,231,872,243.20/148,617.92
  6. Step 6: Final answer
    x = 122,676.13

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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.