Home / 132,322.78-182,634.31-81,379.34

Finding the Fourth Proportional to 132,322.78, 182,634.31 and 81,379.34

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Solution

The fourth proportional to 132,322.78, 182,634.31 and 81,379.34 is: 112,321.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,322.78 : 182,634.31 = 81,379.34 : x
  2. Step 2: Convert to fraction form
    132,322.78/182,634.31 = 81,379.34/x
  3. Step 3: Cross multiply
    132,322.78x = 182,634.31 × 81,379.34
  4. Step 4: Simplify right side
    132,322.78x = 14,862,659,609.16
  5. Step 5: Solve for x
    x = 14,862,659,609.16/132,322.78
  6. Step 6: Final answer
    x = 112,321.25

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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.