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Finding the Fourth Proportional to 159,375.93, 219,936.90 and 87,754.38

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Solution

The fourth proportional to 159,375.93, 219,936.90 and 87,754.38 is: 121,100.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,375.93 : 219,936.90 = 87,754.38 : x
  2. Step 2: Convert to fraction form
    159,375.93/219,936.90 = 87,754.38/x
  3. Step 3: Cross multiply
    159,375.93x = 219,936.90 × 87,754.38
  4. Step 4: Simplify right side
    159,375.93x = 19,300,426,298.62
  5. Step 5: Solve for x
    x = 19,300,426,298.62/159,375.93
  6. Step 6: Final answer
    x = 121,100.01

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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.