Home / 178,836.40-267,817.20-85,232.80

Finding the Fourth Proportional to 178,836.40, 267,817.20 and 85,232.80

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Solution

The fourth proportional to 178,836.40, 267,817.20 and 85,232.80 is: 127,640.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,836.40 : 267,817.20 = 85,232.80 : x
  2. Step 2: Convert to fraction form
    178,836.40/267,817.20 = 85,232.80/x
  3. Step 3: Cross multiply
    178,836.40x = 267,817.20 × 85,232.80
  4. Step 4: Simplify right side
    178,836.40x = 22,826,809,844.16
  5. Step 5: Solve for x
    x = 22,826,809,844.16/178,836.40
  6. Step 6: Final answer
    x = 127,640.74

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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.