Home / 187,431.40-280,836.06-131,910.76

Finding the Fourth Proportional to 187,431.40, 280,836.06 and 131,910.76

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Solution

The fourth proportional to 187,431.40, 280,836.06 and 131,910.76 is: 197,647.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,431.40 : 280,836.06 = 131,910.76 : x
  2. Step 2: Convert to fraction form
    187,431.40/280,836.06 = 131,910.76/x
  3. Step 3: Cross multiply
    187,431.40x = 280,836.06 × 131,910.76
  4. Step 4: Simplify right side
    187,431.40x = 37,045,298,110.01
  5. Step 5: Solve for x
    x = 37,045,298,110.01/187,431.40
  6. Step 6: Final answer
    x = 197,647.24

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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.