Home / 187,671.06-258,976.17-102,786.30

Finding the Fourth Proportional to 187,671.06, 258,976.17 and 102,786.30

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Solution

The fourth proportional to 187,671.06, 258,976.17 and 102,786.30 is: 141,839.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,671.06 : 258,976.17 = 102,786.30 : x
  2. Step 2: Convert to fraction form
    187,671.06/258,976.17 = 102,786.30/x
  3. Step 3: Cross multiply
    187,671.06x = 258,976.17 × 102,786.30
  4. Step 4: Simplify right side
    187,671.06x = 26,619,202,302.47
  5. Step 5: Solve for x
    x = 26,619,202,302.47/187,671.06
  6. Step 6: Final answer
    x = 141,839.68

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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.