Home / 133,822.80-200,734.20-81,248.40

Finding the Fourth Proportional to 133,822.80, 200,734.20 and 81,248.40

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Solution

The fourth proportional to 133,822.80, 200,734.20 and 81,248.40 is: 121,872.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,822.80 : 200,734.20 = 81,248.40 : x
  2. Step 2: Convert to fraction form
    133,822.80/200,734.20 = 81,248.40/x
  3. Step 3: Cross multiply
    133,822.80x = 200,734.20 × 81,248.40
  4. Step 4: Simplify right side
    133,822.80x = 16,309,332,575.28
  5. Step 5: Solve for x
    x = 16,309,332,575.28/133,822.80
  6. Step 6: Final answer
    x = 121,872.60

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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.