Home / 187,424.48-281,105.40-82,215.20

Finding the Fourth Proportional to 187,424.48, 281,105.40 and 82,215.20

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Solution

The fourth proportional to 187,424.48, 281,105.40 and 82,215.20 is: 123,309.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,424.48 : 281,105.40 = 82,215.20 : x
  2. Step 2: Convert to fraction form
    187,424.48/281,105.40 = 82,215.20/x
  3. Step 3: Cross multiply
    187,424.48x = 281,105.40 × 82,215.20
  4. Step 4: Simplify right side
    187,424.48x = 23,111,136,682.08
  5. Step 5: Solve for x
    x = 23,111,136,682.08/187,424.48
  6. Step 6: Final answer
    x = 123,309.06

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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.