Home / 187,909.21-281,396.51-131,484.95

Finding the Fourth Proportional to 187,909.21, 281,396.51 and 131,484.95

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Solution

The fourth proportional to 187,909.21, 281,396.51 and 131,484.95 is: 196,900.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,909.21 : 281,396.51 = 131,484.95 : x
  2. Step 2: Convert to fraction form
    187,909.21/281,396.51 = 131,484.95/x
  3. Step 3: Cross multiply
    187,909.21x = 281,396.51 × 131,484.95
  4. Step 4: Simplify right side
    187,909.21x = 36,999,405,531.42
  5. Step 5: Solve for x
    x = 36,999,405,531.42/187,909.21
  6. Step 6: Final answer
    x = 196,900.44

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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.