Home / 142,895.97-197,197.61-79,234.83

Finding the Fourth Proportional to 142,895.97, 197,197.61 and 79,234.83

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Solution

The fourth proportional to 142,895.97, 197,197.61 and 79,234.83 is: 109,344.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,895.97 : 197,197.61 = 79,234.83 : x
  2. Step 2: Convert to fraction form
    142,895.97/197,197.61 = 79,234.83/x
  3. Step 3: Cross multiply
    142,895.97x = 197,197.61 × 79,234.83
  4. Step 4: Simplify right side
    142,895.97x = 15,624,918,708.58
  5. Step 5: Solve for x
    x = 15,624,918,708.58/142,895.97
  6. Step 6: Final answer
    x = 109,344.71

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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.