Home / 187,886.16-259,279.92-103,003.80

Finding the Fourth Proportional to 187,886.16, 259,279.92 and 103,003.80

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Solution

The fourth proportional to 187,886.16, 259,279.92 and 103,003.80 is: 142,143.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,886.16 : 259,279.92 = 103,003.80 : x
  2. Step 2: Convert to fraction form
    187,886.16/259,279.92 = 103,003.80/x
  3. Step 3: Cross multiply
    187,886.16x = 259,279.92 × 103,003.80
  4. Step 4: Simplify right side
    187,886.16x = 26,706,817,023.70
  5. Step 5: Solve for x
    x = 26,706,817,023.70/187,886.16
  6. Step 6: Final answer
    x = 142,143.61

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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.