Home / 187,234.20-280,851.30-127,099.80

Finding the Fourth Proportional to 187,234.20, 280,851.30 and 127,099.80

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Solution

The fourth proportional to 187,234.20, 280,851.30 and 127,099.80 is: 190,649.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,234.20 : 280,851.30 = 127,099.80 : x
  2. Step 2: Convert to fraction form
    187,234.20/280,851.30 = 127,099.80/x
  3. Step 3: Cross multiply
    187,234.20x = 280,851.30 × 127,099.80
  4. Step 4: Simplify right side
    187,234.20x = 35,696,144,059.74
  5. Step 5: Solve for x
    x = 35,696,144,059.74/187,234.20
  6. Step 6: Final answer
    x = 190,649.70

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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.