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Finding the Fourth Proportional to 103,659.33, 155,489 and 33,545.73

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Solution

The fourth proportional to 103,659.33, 155,489 and 33,545.73 is: 50,318.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,659.33 : 155,489 = 33,545.73 : x
  2. Step 2: Convert to fraction form
    103,659.33/155,489 = 33,545.73/x
  3. Step 3: Cross multiply
    103,659.33x = 155,489 × 33,545.73
  4. Step 4: Simplify right side
    103,659.33x = 5,215,992,011.97
  5. Step 5: Solve for x
    x = 5,215,992,011.97/103,659.33
  6. Step 6: Final answer
    x = 50,318.60

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1.5x scale

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.