Home / 131,682.21-181,720.86-71,253.92

Finding the Fourth Proportional to 131,682.21, 181,720.86 and 71,253.92

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Solution

The fourth proportional to 131,682.21, 181,720.86 and 71,253.92 is: 98,330.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,682.21 : 181,720.86 = 71,253.92 : x
  2. Step 2: Convert to fraction form
    131,682.21/181,720.86 = 71,253.92/x
  3. Step 3: Cross multiply
    131,682.21x = 181,720.86 × 71,253.92
  4. Step 4: Simplify right side
    131,682.21x = 12,948,323,620.77
  5. Step 5: Solve for x
    x = 12,948,323,620.77/131,682.21
  6. Step 6: Final answer
    x = 98,330.09

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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.