Home / 131,753.91-197,243.28-81,673.23

Finding the Fourth Proportional to 131,753.91, 197,243.28 and 81,673.23

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Solution

The fourth proportional to 131,753.91, 197,243.28 and 81,673.23 is: 122,269.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,753.91 : 197,243.28 = 81,673.23 : x
  2. Step 2: Convert to fraction form
    131,753.91/197,243.28 = 81,673.23/x
  3. Step 3: Cross multiply
    131,753.91x = 197,243.28 × 81,673.23
  4. Step 4: Simplify right side
    131,753.91x = 16,109,495,773.39
  5. Step 5: Solve for x
    x = 16,109,495,773.39/131,753.91
  6. Step 6: Final answer
    x = 122,269.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.