Home / 142,898.55-197,199.68-79,234.71

Finding the Fourth Proportional to 142,898.55, 197,199.68 and 79,234.71

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Solution

The fourth proportional to 142,898.55, 197,199.68 and 79,234.71 is: 109,343.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,898.55 : 197,199.68 = 79,234.71 : x
  2. Step 2: Convert to fraction form
    142,898.55/197,199.68 = 79,234.71/x
  3. Step 3: Cross multiply
    142,898.55x = 197,199.68 × 79,234.71
  4. Step 4: Simplify right side
    142,898.55x = 15,625,059,060.72
  5. Step 5: Solve for x
    x = 15,625,059,060.72/142,898.55
  6. Step 6: Final answer
    x = 109,343.72

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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.