Home / 187,249.19-280,742.56-68,905.15

Finding the Fourth Proportional to 187,249.19, 280,742.56 and 68,905.15

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Solution

The fourth proportional to 187,249.19, 280,742.56 and 68,905.15 is: 103,309.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,249.19 : 280,742.56 = 68,905.15 : x
  2. Step 2: Convert to fraction form
    187,249.19/280,742.56 = 68,905.15/x
  3. Step 3: Cross multiply
    187,249.19x = 280,742.56 × 68,905.15
  4. Step 4: Simplify right side
    187,249.19x = 19,344,607,334.06
  5. Step 5: Solve for x
    x = 19,344,607,334.06/187,249.19
  6. Step 6: Final answer
    x = 103,309.43

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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.