Home / 143,310.88-197,777.20-79,652.71

Finding the Fourth Proportional to 143,310.88, 197,777.20 and 79,652.71

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Solution

The fourth proportional to 143,310.88, 197,777.20 and 79,652.71 is: 109,925.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,310.88 : 197,777.20 = 79,652.71 : x
  2. Step 2: Convert to fraction form
    143,310.88/197,777.20 = 79,652.71/x
  3. Step 3: Cross multiply
    143,310.88x = 197,777.20 × 79,652.71
  4. Step 4: Simplify right side
    143,310.88x = 15,753,489,956.21
  5. Step 5: Solve for x
    x = 15,753,489,956.21/143,310.88
  6. Step 6: Final answer
    x = 109,925.29

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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.