Home / 178,780.76-268,166.98-90,010.43

Finding the Fourth Proportional to 178,780.76, 268,166.98 and 90,010.43

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Solution

The fourth proportional to 178,780.76, 268,166.98 and 90,010.43 is: 135,013.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,780.76 : 268,166.98 = 90,010.43 : x
  2. Step 2: Convert to fraction form
    178,780.76/268,166.98 = 90,010.43/x
  3. Step 3: Cross multiply
    178,780.76x = 268,166.98 × 90,010.43
  4. Step 4: Simplify right side
    178,780.76x = 24,137,825,181.60
  5. Step 5: Solve for x
    x = 24,137,825,181.60/178,780.76
  6. Step 6: Final answer
    x = 135,013.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.