Home / 187,851.89-281,899.98-81,339.86

Finding the Fourth Proportional to 187,851.89, 281,899.98 and 81,339.86

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Solution

The fourth proportional to 187,851.89, 281,899.98 and 81,339.86 is: 122,062.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,851.89 : 281,899.98 = 81,339.86 : x
  2. Step 2: Convert to fraction form
    187,851.89/281,899.98 = 81,339.86/x
  3. Step 3: Cross multiply
    187,851.89x = 281,899.98 × 81,339.86
  4. Step 4: Simplify right side
    187,851.89x = 22,929,705,611.95
  5. Step 5: Solve for x
    x = 22,929,705,611.95/187,851.89
  6. Step 6: Final answer
    x = 122,062.68

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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.