Home / 187,518.68-258,781.98-102,635.72

Finding the Fourth Proportional to 187,518.68, 258,781.98 and 102,635.72

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Solution

The fourth proportional to 187,518.68, 258,781.98 and 102,635.72 is: 141,640.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,518.68 : 258,781.98 = 102,635.72 : x
  2. Step 2: Convert to fraction form
    187,518.68/258,781.98 = 102,635.72/x
  3. Step 3: Cross multiply
    187,518.68x = 258,781.98 × 102,635.72
  4. Step 4: Simplify right side
    187,518.68x = 26,560,274,840.33
  5. Step 5: Solve for x
    x = 26,560,274,840.33/187,518.68
  6. Step 6: Final answer
    x = 141,640.69

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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.