Home / 137,717.80-206,285.10-122,943.40

Finding the Fourth Proportional to 137,717.80, 206,285.10 and 122,943.40

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Solution

The fourth proportional to 137,717.80, 206,285.10 and 122,943.40 is: 184,154.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,717.80 : 206,285.10 = 122,943.40 : x
  2. Step 2: Convert to fraction form
    137,717.80/206,285.10 = 122,943.40/x
  3. Step 3: Cross multiply
    137,717.80x = 206,285.10 × 122,943.40
  4. Step 4: Simplify right side
    137,717.80x = 25,361,391,563.34
  5. Step 5: Solve for x
    x = 25,361,391,563.34/137,717.80
  6. Step 6: Final answer
    x = 184,154.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.