Home / 187,073.25-258,166.13-111,665.49

Finding the Fourth Proportional to 187,073.25, 258,166.13 and 111,665.49

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Solution

The fourth proportional to 187,073.25, 258,166.13 and 111,665.49 is: 154,101.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,073.25 : 258,166.13 = 111,665.49 : x
  2. Step 2: Convert to fraction form
    187,073.25/258,166.13 = 111,665.49/x
  3. Step 3: Cross multiply
    187,073.25x = 258,166.13 × 111,665.49
  4. Step 4: Simplify right side
    187,073.25x = 28,828,247,407.85
  5. Step 5: Solve for x
    x = 28,828,247,407.85/187,073.25
  6. Step 6: Final answer
    x = 154,101.39

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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.