Home / 187,093.10-280,676.10-74,754.20

Finding the Fourth Proportional to 187,093.10, 280,676.10 and 74,754.20

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Solution

The fourth proportional to 187,093.10, 280,676.10 and 74,754.20 is: 112,145.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,093.10 : 280,676.10 = 74,754.20 : x
  2. Step 2: Convert to fraction form
    187,093.10/280,676.10 = 74,754.20/x
  3. Step 3: Cross multiply
    187,093.10x = 280,676.10 × 74,754.20
  4. Step 4: Simplify right side
    187,093.10x = 20,981,717,314.62
  5. Step 5: Solve for x
    x = 20,981,717,314.62/187,093.10
  6. Step 6: Final answer
    x = 112,145.86

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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.