Home / 103,434.05-155,169.30-36,912.80

Finding the Fourth Proportional to 103,434.05, 155,169.30 and 36,912.80

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Solution

The fourth proportional to 103,434.05, 155,169.30 and 36,912.80 is: 55,375.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,434.05 : 155,169.30 = 36,912.80 : x
  2. Step 2: Convert to fraction form
    103,434.05/155,169.30 = 36,912.80/x
  3. Step 3: Cross multiply
    103,434.05x = 155,169.30 × 36,912.80
  4. Step 4: Simplify right side
    103,434.05x = 5,727,733,337.04
  5. Step 5: Solve for x
    x = 5,727,733,337.04/103,434.05
  6. Step 6: Final answer
    x = 55,375.70

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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.