Home / 187,100.48-258,198.10-102,218.15

Finding the Fourth Proportional to 187,100.48, 258,198.10 and 102,218.15

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Solution

The fourth proportional to 187,100.48, 258,198.10 and 102,218.15 is: 141,060.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,100.48 : 258,198.10 = 102,218.15 : x
  2. Step 2: Convert to fraction form
    187,100.48/258,198.10 = 102,218.15/x
  3. Step 3: Cross multiply
    187,100.48x = 258,198.10 × 102,218.15
  4. Step 4: Simplify right side
    187,100.48x = 26,392,532,505.46
  5. Step 5: Solve for x
    x = 26,392,532,505.46/187,100.48
  6. Step 6: Final answer
    x = 141,060.74

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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.