Home / 132,391.21-182,701.09-71,962

Finding the Fourth Proportional to 132,391.21, 182,701.09 and 71,962

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Solution

The fourth proportional to 132,391.21, 182,701.09 and 71,962 is: 99,308.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,391.21 : 182,701.09 = 71,962 : x
  2. Step 2: Convert to fraction form
    132,391.21/182,701.09 = 71,962/x
  3. Step 3: Cross multiply
    132,391.21x = 182,701.09 × 71,962
  4. Step 4: Simplify right side
    132,391.21x = 13,147,535,838.58
  5. Step 5: Solve for x
    x = 13,147,535,838.58/132,391.21
  6. Step 6: Final answer
    x = 99,308.22

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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.