Home / 187,115.11-258,218.41-102,232.78

Finding the Fourth Proportional to 187,115.11, 258,218.41 and 102,232.78

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Solution

The fourth proportional to 187,115.11, 258,218.41 and 102,232.78 is: 141,081.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,115.11 : 258,218.41 = 102,232.78 : x
  2. Step 2: Convert to fraction form
    187,115.11/258,218.41 = 102,232.78/x
  3. Step 3: Cross multiply
    187,115.11x = 258,218.41 × 102,232.78
  4. Step 4: Simplify right side
    187,115.11x = 26,398,385,901.48
  5. Step 5: Solve for x
    x = 26,398,385,901.48/187,115.11
  6. Step 6: Final answer
    x = 141,081.00

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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.