Home / 187,616.04-258,910.20-102,738.30

Finding the Fourth Proportional to 187,616.04, 258,910.20 and 102,738.30

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Solution

The fourth proportional to 187,616.04, 258,910.20 and 102,738.30 is: 141,778.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,616.04 : 258,910.20 = 102,738.30 : x
  2. Step 2: Convert to fraction form
    187,616.04/258,910.20 = 102,738.30/x
  3. Step 3: Cross multiply
    187,616.04x = 258,910.20 × 102,738.30
  4. Step 4: Simplify right side
    187,616.04x = 26,599,993,800.66
  5. Step 5: Solve for x
    x = 26,599,993,800.66/187,616.04
  6. Step 6: Final answer
    x = 141,778.89

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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.