Home / 279,448.16-419,043.74-89,873.53

Finding the Fourth Proportional to 279,448.16, 419,043.74 and 89,873.53

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Solution

The fourth proportional to 279,448.16, 419,043.74 and 89,873.53 is: 134,768.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,448.16 : 419,043.74 = 89,873.53 : x
  2. Step 2: Convert to fraction form
    279,448.16/419,043.74 = 89,873.53/x
  3. Step 3: Cross multiply
    279,448.16x = 419,043.74 × 89,873.53
  4. Step 4: Simplify right side
    279,448.16x = 37,660,940,138.20
  5. Step 5: Solve for x
    x = 37,660,940,138.20/279,448.16
  6. Step 6: Final answer
    x = 134,768.97

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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.