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Finding the Fourth Proportional to 159,600.94, 220,250.81 and 87,983.53

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Solution

The fourth proportional to 159,600.94, 220,250.81 and 87,983.53 is: 121,418.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,600.94 : 220,250.81 = 87,983.53 : x
  2. Step 2: Convert to fraction form
    159,600.94/220,250.81 = 87,983.53/x
  3. Step 3: Cross multiply
    159,600.94x = 220,250.81 × 87,983.53
  4. Step 4: Simplify right side
    159,600.94x = 19,378,443,418.49
  5. Step 5: Solve for x
    x = 19,378,443,418.49/159,600.94
  6. Step 6: Final answer
    x = 121,418.11

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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.