Home / 178,810.40-267,778.20-85,206.80

Finding the Fourth Proportional to 178,810.40, 267,778.20 and 85,206.80

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Solution

The fourth proportional to 178,810.40, 267,778.20 and 85,206.80 is: 127,601.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,810.40 : 267,778.20 = 85,206.80 : x
  2. Step 2: Convert to fraction form
    178,810.40/267,778.20 = 85,206.80/x
  3. Step 3: Cross multiply
    178,810.40x = 267,778.20 × 85,206.80
  4. Step 4: Simplify right side
    178,810.40x = 22,816,523,531.76
  5. Step 5: Solve for x
    x = 22,816,523,531.76/178,810.40
  6. Step 6: Final answer
    x = 127,601.77

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1.5x scale

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.