Home / 142,718.76-196,951.88-79,060.68

Finding the Fourth Proportional to 142,718.76, 196,951.88 and 79,060.68

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Solution

The fourth proportional to 142,718.76, 196,951.88 and 79,060.68 is: 109,103.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,718.76 : 196,951.88 = 79,060.68 : x
  2. Step 2: Convert to fraction form
    142,718.76/196,951.88 = 79,060.68/x
  3. Step 3: Cross multiply
    142,718.76x = 196,951.88 × 79,060.68
  4. Step 4: Simplify right side
    142,718.76x = 15,571,149,560.08
  5. Step 5: Solve for x
    x = 15,571,149,560.08/142,718.76
  6. Step 6: Final answer
    x = 109,103.73

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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.