Home / 187,234.60-280,851.90-81,941.80

Finding the Fourth Proportional to 187,234.60, 280,851.90 and 81,941.80

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Solution

The fourth proportional to 187,234.60, 280,851.90 and 81,941.80 is: 122,912.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,234.60 : 280,851.90 = 81,941.80 : x
  2. Step 2: Convert to fraction form
    187,234.60/280,851.90 = 81,941.80/x
  3. Step 3: Cross multiply
    187,234.60x = 280,851.90 × 81,941.80
  4. Step 4: Simplify right side
    187,234.60x = 23,013,510,219.42
  5. Step 5: Solve for x
    x = 23,013,510,219.42/187,234.60
  6. Step 6: Final answer
    x = 122,912.70

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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.