Home / 187,722.21-259,057.56-102,839.28

Finding the Fourth Proportional to 187,722.21, 259,057.56 and 102,839.28

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Solution

The fourth proportional to 187,722.21, 259,057.56 and 102,839.28 is: 141,918.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,722.21 : 259,057.56 = 102,839.28 : x
  2. Step 2: Convert to fraction form
    187,722.21/259,057.56 = 102,839.28/x
  3. Step 3: Cross multiply
    187,722.21x = 259,057.56 × 102,839.28
  4. Step 4: Simplify right side
    187,722.21x = 26,641,292,948.96
  5. Step 5: Solve for x
    x = 26,641,292,948.96/187,722.21
  6. Step 6: Final answer
    x = 141,918.71

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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.