Home / 142,895.97-197,194.91-79,233.21

Finding the Fourth Proportional to 142,895.97, 197,194.91 and 79,233.21

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Solution

The fourth proportional to 142,895.97, 197,194.91 and 79,233.21 is: 109,340.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,895.97 : 197,194.91 = 79,233.21 : x
  2. Step 2: Convert to fraction form
    142,895.97/197,194.91 = 79,233.21/x
  3. Step 3: Cross multiply
    142,895.97x = 197,194.91 × 79,233.21
  4. Step 4: Simplify right side
    142,895.97x = 15,624,385,318.80
  5. Step 5: Solve for x
    x = 15,624,385,318.80/142,895.97
  6. Step 6: Final answer
    x = 109,340.98

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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.