Home / 187,111.20-258,123.44-136,044.80

Finding the Fourth Proportional to 187,111.20, 258,123.44 and 136,044.80

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Solution

The fourth proportional to 187,111.20, 258,123.44 and 136,044.80 is: 187,676.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,111.20 : 258,123.44 = 136,044.80 : x
  2. Step 2: Convert to fraction form
    187,111.20/258,123.44 = 136,044.80/x
  3. Step 3: Cross multiply
    187,111.20x = 258,123.44 × 136,044.80
  4. Step 4: Simplify right side
    187,111.20x = 35,116,351,770.11
  5. Step 5: Solve for x
    x = 35,116,351,770.11/187,111.20
  6. Step 6: Final answer
    x = 187,676.38

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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.