Home / 132,377.76-182,685.33-81,420.39

Finding the Fourth Proportional to 132,377.76, 182,685.33 and 81,420.39

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Solution

The fourth proportional to 132,377.76, 182,685.33 and 81,420.39 is: 112,362.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,377.76 : 182,685.33 = 81,420.39 : x
  2. Step 2: Convert to fraction form
    132,377.76/182,685.33 = 81,420.39/x
  3. Step 3: Cross multiply
    132,377.76x = 182,685.33 × 81,420.39
  4. Step 4: Simplify right side
    132,377.76x = 14,874,310,815.88
  5. Step 5: Solve for x
    x = 14,874,310,815.88/132,377.76
  6. Step 6: Final answer
    x = 112,362.61

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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.