Home / 187,685.68-259,006.30-102,805.80

Finding the Fourth Proportional to 187,685.68, 259,006.30 and 102,805.80

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Solution

The fourth proportional to 187,685.68, 259,006.30 and 102,805.80 is: 141,872.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,685.68 : 259,006.30 = 102,805.80 : x
  2. Step 2: Convert to fraction form
    187,685.68/259,006.30 = 102,805.80/x
  3. Step 3: Cross multiply
    187,685.68x = 259,006.30 × 102,805.80
  4. Step 4: Simplify right side
    187,685.68x = 26,627,349,876.54
  5. Step 5: Solve for x
    x = 26,627,349,876.54/187,685.68
  6. Step 6: Final answer
    x = 141,872.04

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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.