Home / 187,813.08-281,522.79-69,408.90

Finding the Fourth Proportional to 187,813.08, 281,522.79 and 69,408.90

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Solution

The fourth proportional to 187,813.08, 281,522.79 and 69,408.90 is: 104,040.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,813.08 : 281,522.79 = 69,408.90 : x
  2. Step 2: Convert to fraction form
    187,813.08/281,522.79 = 69,408.90/x
  3. Step 3: Cross multiply
    187,813.08x = 281,522.79 × 69,408.90
  4. Step 4: Simplify right side
    187,813.08x = 19,540,187,178.83
  5. Step 5: Solve for x
    x = 19,540,187,178.83/187,813.08
  6. Step 6: Final answer
    x = 104,040.61

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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.