Home / 319,481.04-479,041.74-106,134.75

Finding the Fourth Proportional to 319,481.04, 479,041.74 and 106,134.75

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Solution

The fourth proportional to 319,481.04, 479,041.74 and 106,134.75 is: 159,142.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,481.04 : 479,041.74 = 106,134.75 : x
  2. Step 2: Convert to fraction form
    319,481.04/479,041.74 = 106,134.75/x
  3. Step 3: Cross multiply
    319,481.04x = 479,041.74 × 106,134.75
  4. Step 4: Simplify right side
    319,481.04x = 50,842,975,314.47
  5. Step 5: Solve for x
    x = 50,842,975,314.47/319,481.04
  6. Step 6: Final answer
    x = 159,142.39

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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.