Home / 149,630.96-206,764.44-142,341.68

Finding the Fourth Proportional to 149,630.96, 206,764.44 and 142,341.68

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Solution

The fourth proportional to 149,630.96, 206,764.44 and 142,341.68 is: 196,691.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,630.96 : 206,764.44 = 142,341.68 : x
  2. Step 2: Convert to fraction form
    149,630.96/206,764.44 = 142,341.68/x
  3. Step 3: Cross multiply
    149,630.96x = 206,764.44 × 142,341.68
  4. Step 4: Simplify right side
    149,630.96x = 29,431,197,753.86
  5. Step 5: Solve for x
    x = 29,431,197,753.86/149,630.96
  6. Step 6: Final answer
    x = 196,691.90

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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.