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Finding the Fourth Proportional to 187,054.83, 280,694.03 and 68,738.13

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Solution

The fourth proportional to 187,054.83, 280,694.03 and 68,738.13 is: 103,148.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,054.83 : 280,694.03 = 68,738.13 : x
  2. Step 2: Convert to fraction form
    187,054.83/280,694.03 = 68,738.13/x
  3. Step 3: Cross multiply
    187,054.83x = 280,694.03 × 68,738.13
  4. Step 4: Simplify right side
    187,054.83x = 19,294,382,380.67
  5. Step 5: Solve for x
    x = 19,294,382,380.67/187,054.83
  6. Step 6: Final answer
    x = 103,148.27

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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.