Home / 178,784.25-268,172.22-90,013.92

Finding the Fourth Proportional to 178,784.25, 268,172.22 and 90,013.92

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Solution

The fourth proportional to 178,784.25, 268,172.22 and 90,013.92 is: 135,018.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,784.25 : 268,172.22 = 90,013.92 : x
  2. Step 2: Convert to fraction form
    178,784.25/268,172.22 = 90,013.92/x
  3. Step 3: Cross multiply
    178,784.25x = 268,172.22 × 90,013.92
  4. Step 4: Simplify right side
    178,784.25x = 24,139,232,757.30
  5. Step 5: Solve for x
    x = 24,139,232,757.30/178,784.25
  6. Step 6: Final answer
    x = 135,018.79

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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.