Home / 148,863.90-205,432.43-80,881.14

Finding the Fourth Proportional to 148,863.90, 205,432.43 and 80,881.14

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Solution

The fourth proportional to 148,863.90, 205,432.43 and 80,881.14 is: 111,616.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,863.90 : 205,432.43 = 80,881.14 : x
  2. Step 2: Convert to fraction form
    148,863.90/205,432.43 = 80,881.14/x
  3. Step 3: Cross multiply
    148,863.90x = 205,432.43 × 80,881.14
  4. Step 4: Simplify right side
    148,863.90x = 16,615,608,726.96
  5. Step 5: Solve for x
    x = 16,615,608,726.96/148,863.90
  6. Step 6: Final answer
    x = 111,616.11

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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.