Home / 279,628.07-419,504.37-102,134.79

Finding the Fourth Proportional to 279,628.07, 419,504.37 and 102,134.79

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Solution

The fourth proportional to 279,628.07, 419,504.37 and 102,134.79 is: 153,224.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,628.07 : 419,504.37 = 102,134.79 : x
  2. Step 2: Convert to fraction form
    279,628.07/419,504.37 = 102,134.79/x
  3. Step 3: Cross multiply
    279,628.07x = 419,504.37 × 102,134.79
  4. Step 4: Simplify right side
    279,628.07x = 42,845,990,351.03
  5. Step 5: Solve for x
    x = 42,845,990,351.03/279,628.07
  6. Step 6: Final answer
    x = 153,224.93

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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.