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Finding the Fourth Proportional to 103,800.38, 155,766.78 and 37,239.03

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Solution

The fourth proportional to 103,800.38, 155,766.78 and 37,239.03 is: 55,882.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,800.38 : 155,766.78 = 37,239.03 : x
  2. Step 2: Convert to fraction form
    103,800.38/155,766.78 = 37,239.03/x
  3. Step 3: Cross multiply
    103,800.38x = 155,766.78 × 37,239.03
  4. Step 4: Simplify right side
    103,800.38x = 5,800,603,793.42
  5. Step 5: Solve for x
    x = 5,800,603,793.42/103,800.38
  6. Step 6: Final answer
    x = 55,882.30

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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.