Home / 142,691.41-196,913.65-82,261.76

Finding the Fourth Proportional to 142,691.41, 196,913.65 and 82,261.76

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Solution

The fourth proportional to 142,691.41, 196,913.65 and 82,261.76 is: 113,520.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,691.41 : 196,913.65 = 82,261.76 : x
  2. Step 2: Convert to fraction form
    142,691.41/196,913.65 = 82,261.76/x
  3. Step 3: Cross multiply
    142,691.41x = 196,913.65 × 82,261.76
  4. Step 4: Simplify right side
    142,691.41x = 16,198,463,005.72
  5. Step 5: Solve for x
    x = 16,198,463,005.72/142,691.41
  6. Step 6: Final answer
    x = 113,520.94

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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.