Home / 148,392.24-204,781.92-80,409.36

Finding the Fourth Proportional to 148,392.24, 204,781.92 and 80,409.36

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Solution

The fourth proportional to 148,392.24, 204,781.92 and 80,409.36 is: 110,965.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,392.24 : 204,781.92 = 80,409.36 : x
  2. Step 2: Convert to fraction form
    148,392.24/204,781.92 = 80,409.36/x
  3. Step 3: Cross multiply
    148,392.24x = 204,781.92 × 80,409.36
  4. Step 4: Simplify right side
    148,392.24x = 16,466,383,126.77
  5. Step 5: Solve for x
    x = 16,466,383,126.77/148,392.24
  6. Step 6: Final answer
    x = 110,965.26

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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.