Home / 148,432.80-204,829.92-83,900.64

Finding the Fourth Proportional to 148,432.80, 204,829.92 and 83,900.64

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Solution

The fourth proportional to 148,432.80, 204,829.92 and 83,900.64 is: 115,778.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,432.80 : 204,829.92 = 83,900.64 : x
  2. Step 2: Convert to fraction form
    148,432.80/204,829.92 = 83,900.64/x
  3. Step 3: Cross multiply
    148,432.80x = 204,829.92 × 83,900.64
  4. Step 4: Simplify right side
    148,432.80x = 17,185,361,379.15
  5. Step 5: Solve for x
    x = 17,185,361,379.15/148,432.80
  6. Step 6: Final answer
    x = 115,778.73

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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.