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Finding the Fourth Proportional to 181,874.26, 250,987 and 105,408.20

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Solution

The fourth proportional to 181,874.26, 250,987 and 105,408.20 is: 145,463.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,874.26 : 250,987 = 105,408.20 : x
  2. Step 2: Convert to fraction form
    181,874.26/250,987 = 105,408.20/x
  3. Step 3: Cross multiply
    181,874.26x = 250,987 × 105,408.20
  4. Step 4: Simplify right side
    181,874.26x = 26,456,087,893.40
  5. Step 5: Solve for x
    x = 26,456,087,893.40/181,874.26
  6. Step 6: Final answer
    x = 145,463.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.