Home / 187,979.17-259,427.65-103,112.63

Finding the Fourth Proportional to 187,979.17, 259,427.65 and 103,112.63

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Solution

The fourth proportional to 187,979.17, 259,427.65 and 103,112.63 is: 142,304.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,979.17 : 259,427.65 = 103,112.63 : x
  2. Step 2: Convert to fraction form
    187,979.17/259,427.65 = 103,112.63/x
  3. Step 3: Cross multiply
    187,979.17x = 259,427.65 × 103,112.63
  4. Step 4: Simplify right side
    187,979.17x = 26,750,267,286.22
  5. Step 5: Solve for x
    x = 26,750,267,286.22/187,979.17
  6. Step 6: Final answer
    x = 142,304.42

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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.