Home / 187,712.84-281,372.33-87,788.81

Finding the Fourth Proportional to 187,712.84, 281,372.33 and 87,788.81

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Solution

The fourth proportional to 187,712.84, 281,372.33 and 87,788.81 is: 131,591.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,712.84 : 281,372.33 = 87,788.81 : x
  2. Step 2: Convert to fraction form
    187,712.84/281,372.33 = 87,788.81/x
  3. Step 3: Cross multiply
    187,712.84x = 281,372.33 × 87,788.81
  4. Step 4: Simplify right side
    187,712.84x = 24,701,342,940.53
  5. Step 5: Solve for x
    x = 24,701,342,940.53/187,712.84
  6. Step 6: Final answer
    x = 131,591.12

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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.