Home / 132,128.78-182,340.88-71,701.96

Finding the Fourth Proportional to 132,128.78, 182,340.88 and 71,701.96

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Solution

The fourth proportional to 132,128.78, 182,340.88 and 71,701.96 is: 98,950.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,128.78 : 182,340.88 = 71,701.96 : x
  2. Step 2: Convert to fraction form
    132,128.78/182,340.88 = 71,701.96/x
  3. Step 3: Cross multiply
    132,128.78x = 182,340.88 × 71,701.96
  4. Step 4: Simplify right side
    132,128.78x = 13,074,198,484.12
  5. Step 5: Solve for x
    x = 13,074,198,484.12/132,128.78
  6. Step 6: Final answer
    x = 98,950.42

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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.