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Finding the Fourth Proportional to 144,027.56, 198,756.95 and 79,496.78

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Solution

The fourth proportional to 144,027.56, 198,756.95 and 79,496.78 is: 109,704.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,027.56 : 198,756.95 = 79,496.78 : x
  2. Step 2: Convert to fraction form
    144,027.56/198,756.95 = 79,496.78/x
  3. Step 3: Cross multiply
    144,027.56x = 198,756.95 × 79,496.78
  4. Step 4: Simplify right side
    144,027.56x = 15,800,537,850.59
  5. Step 5: Solve for x
    x = 15,800,537,850.59/144,027.56
  6. Step 6: Final answer
    x = 109,704.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.