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Finding the Fourth Proportional to 148,846.80, 205,410.02 and 80,864.30

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Solution

The fourth proportional to 148,846.80, 205,410.02 and 80,864.30 is: 111,593.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,846.80 : 205,410.02 = 80,864.30 : x
  2. Step 2: Convert to fraction form
    148,846.80/205,410.02 = 80,864.30/x
  3. Step 3: Cross multiply
    148,846.80x = 205,410.02 × 80,864.30
  4. Step 4: Simplify right side
    148,846.80x = 16,610,337,480.29
  5. Step 5: Solve for x
    x = 16,610,337,480.29/148,846.80
  6. Step 6: Final answer
    x = 111,593.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.