Home / 134,003.60-200,768.88-81,306.08

Finding the Fourth Proportional to 134,003.60, 200,768.88 and 81,306.08

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Solution

The fourth proportional to 134,003.60, 200,768.88 and 81,306.08 is: 121,815.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,003.60 : 200,768.88 = 81,306.08 : x
  2. Step 2: Convert to fraction form
    134,003.60/200,768.88 = 81,306.08/x
  3. Step 3: Cross multiply
    134,003.60x = 200,768.88 × 81,306.08
  4. Step 4: Simplify right side
    134,003.60x = 16,323,730,618.79
  5. Step 5: Solve for x
    x = 16,323,730,618.79/134,003.60
  6. Step 6: Final answer
    x = 121,815.61

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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.