Home / 278,086.77-417,162.56-100,677.33

Finding the Fourth Proportional to 278,086.77, 417,162.56 and 100,677.33

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Solution

The fourth proportional to 278,086.77, 417,162.56 and 100,677.33 is: 151,027.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,086.77 : 417,162.56 = 100,677.33 : x
  2. Step 2: Convert to fraction form
    278,086.77/417,162.56 = 100,677.33/x
  3. Step 3: Cross multiply
    278,086.77x = 417,162.56 × 100,677.33
  4. Step 4: Simplify right side
    278,086.77x = 41,998,812,213.38
  5. Step 5: Solve for x
    x = 41,998,812,213.38/278,086.77
  6. Step 6: Final answer
    x = 151,027.72

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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.