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Finding the Fourth Proportional to 187,967.43, 259,371.08 and 107,400.17

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Solution

The fourth proportional to 187,967.43, 259,371.08 and 107,400.17 is: 148,198.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,967.43 : 259,371.08 = 107,400.17 : x
  2. Step 2: Convert to fraction form
    187,967.43/259,371.08 = 107,400.17/x
  3. Step 3: Cross multiply
    187,967.43x = 259,371.08 × 107,400.17
  4. Step 4: Simplify right side
    187,967.43x = 27,856,498,599.26
  5. Step 5: Solve for x
    x = 27,856,498,599.26/187,967.43
  6. Step 6: Final answer
    x = 148,198.54

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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.