Home / 187,839.21-259,561.80-136,763.28

Finding the Fourth Proportional to 187,839.21, 259,561.80 and 136,763.28

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Solution

The fourth proportional to 187,839.21, 259,561.80 and 136,763.28 is: 188,983.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,839.21 : 259,561.80 = 136,763.28 : x
  2. Step 2: Convert to fraction form
    187,839.21/259,561.80 = 136,763.28/x
  3. Step 3: Cross multiply
    187,839.21x = 259,561.80 × 136,763.28
  4. Step 4: Simplify right side
    187,839.21x = 35,498,523,130.70
  5. Step 5: Solve for x
    x = 35,498,523,130.70/187,839.21
  6. Step 6: Final answer
    x = 188,983.56

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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.