Home / 187,910.17-281,489.36-112,989.01

Finding the Fourth Proportional to 187,910.17, 281,489.36 and 112,989.01

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Solution

The fourth proportional to 187,910.17, 281,489.36 and 112,989.01 is: 169,257.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,910.17 : 281,489.36 = 112,989.01 : x
  2. Step 2: Convert to fraction form
    187,910.17/281,489.36 = 112,989.01/x
  3. Step 3: Cross multiply
    187,910.17x = 281,489.36 × 112,989.01
  4. Step 4: Simplify right side
    187,910.17x = 31,805,204,111.93
  5. Step 5: Solve for x
    x = 31,805,204,111.93/187,910.17
  6. Step 6: Final answer
    x = 169,257.49

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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.