Home / 187,123.44-280,755-112,297.26

Finding the Fourth Proportional to 187,123.44, 280,755 and 112,297.26

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Solution

The fourth proportional to 187,123.44, 280,755 and 112,297.26 is: 168,487.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,123.44 : 280,755 = 112,297.26 : x
  2. Step 2: Convert to fraction form
    187,123.44/280,755 = 112,297.26/x
  3. Step 3: Cross multiply
    187,123.44x = 280,755 × 112,297.26
  4. Step 4: Simplify right side
    187,123.44x = 31,528,017,231.30
  5. Step 5: Solve for x
    x = 31,528,017,231.30/187,123.44
  6. Step 6: Final answer
    x = 168,487.80

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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.