Home / 148,305.90-204,661.11-80,321.31

Finding the Fourth Proportional to 148,305.90, 204,661.11 and 80,321.31

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Solution

The fourth proportional to 148,305.90, 204,661.11 and 80,321.31 is: 110,842.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,305.90 : 204,661.11 = 80,321.31 : x
  2. Step 2: Convert to fraction form
    148,305.90/204,661.11 = 80,321.31/x
  3. Step 3: Cross multiply
    148,305.90x = 204,661.11 × 80,321.31
  4. Step 4: Simplify right side
    148,305.90x = 16,438,648,461.25
  5. Step 5: Solve for x
    x = 16,438,648,461.25/148,305.90
  6. Step 6: Final answer
    x = 110,842.85

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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.