Home / 102,543.05-141,469.97-64,235.94

Finding the Fourth Proportional to 102,543.05, 141,469.97 and 64,235.94

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Solution

The fourth proportional to 102,543.05, 141,469.97 and 64,235.94 is: 88,620.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,543.05 : 141,469.97 = 64,235.94 : x
  2. Step 2: Convert to fraction form
    102,543.05/141,469.97 = 64,235.94/x
  3. Step 3: Cross multiply
    102,543.05x = 141,469.97 × 64,235.94
  4. Step 4: Simplify right side
    102,543.05x = 9,087,456,183.54
  5. Step 5: Solve for x
    x = 9,087,456,183.54/102,543.05
  6. Step 6: Final answer
    x = 88,620.89

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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.