Home / 132,687.11-183,105.97-72,257.87

Finding the Fourth Proportional to 132,687.11, 183,105.97 and 72,257.87

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Solution

The fourth proportional to 132,687.11, 183,105.97 and 72,257.87 is: 99,714.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,687.11 : 183,105.97 = 72,257.87 : x
  2. Step 2: Convert to fraction form
    132,687.11/183,105.97 = 72,257.87/x
  3. Step 3: Cross multiply
    132,687.11x = 183,105.97 × 72,257.87
  4. Step 4: Simplify right side
    132,687.11x = 13,230,847,653.60
  5. Step 5: Solve for x
    x = 13,230,847,653.60/132,687.11
  6. Step 6: Final answer
    x = 99,714.64

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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.