Home / 131,654.40-181,682.04-71,224.85

Finding the Fourth Proportional to 131,654.40, 181,682.04 and 71,224.85

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Solution

The fourth proportional to 131,654.40, 181,682.04 and 71,224.85 is: 98,289.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,654.40 : 181,682.04 = 71,224.85 : x
  2. Step 2: Convert to fraction form
    131,654.40/181,682.04 = 71,224.85/x
  3. Step 3: Cross multiply
    131,654.40x = 181,682.04 × 71,224.85
  4. Step 4: Simplify right side
    131,654.40x = 12,940,276,500.90
  5. Step 5: Solve for x
    x = 12,940,276,500.90/131,654.40
  6. Step 6: Final answer
    x = 98,289.74

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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.