Home / 187,633.41-281,448.35-81,092.70

Finding the Fourth Proportional to 187,633.41, 281,448.35 and 81,092.70

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Solution

The fourth proportional to 187,633.41, 281,448.35 and 81,092.70 is: 121,638.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,633.41 : 281,448.35 = 81,092.70 : x
  2. Step 2: Convert to fraction form
    187,633.41/281,448.35 = 81,092.70/x
  3. Step 3: Cross multiply
    187,633.41x = 281,448.35 × 81,092.70
  4. Step 4: Simplify right side
    187,633.41x = 22,823,405,204.80
  5. Step 5: Solve for x
    x = 22,823,405,204.80/187,633.41
  6. Step 6: Final answer
    x = 121,638.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.