Home / 148,982.61-205,600.04-81,004.15

Finding the Fourth Proportional to 148,982.61, 205,600.04 and 81,004.15

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Solution

The fourth proportional to 148,982.61, 205,600.04 and 81,004.15 is: 111,787.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,982.61 : 205,600.04 = 81,004.15 : x
  2. Step 2: Convert to fraction form
    148,982.61/205,600.04 = 81,004.15/x
  3. Step 3: Cross multiply
    148,982.61x = 205,600.04 × 81,004.15
  4. Step 4: Simplify right side
    148,982.61x = 16,654,456,635.91
  5. Step 5: Solve for x
    x = 16,654,456,635.91/148,982.61
  6. Step 6: Final answer
    x = 111,787.92

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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.