Home / 250,724.43-345,997.67-136,002.78

Finding the Fourth Proportional to 250,724.43, 345,997.67 and 136,002.78

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Solution

The fourth proportional to 250,724.43, 345,997.67 and 136,002.78 is: 187,682.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,724.43 : 345,997.67 = 136,002.78 : x
  2. Step 2: Convert to fraction form
    250,724.43/345,997.67 = 136,002.78/x
  3. Step 3: Cross multiply
    250,724.43x = 345,997.67 × 136,002.78
  4. Step 4: Simplify right side
    250,724.43x = 47,056,644,313.51
  5. Step 5: Solve for x
    x = 47,056,644,313.51/250,724.43
  6. Step 6: Final answer
    x = 187,682.73

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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.