Home / 324,727.68-487,140-100,069.44

Finding the Fourth Proportional to 324,727.68, 487,140 and 100,069.44

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Solution

The fourth proportional to 324,727.68, 487,140 and 100,069.44 is: 150,119.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,727.68 : 487,140 = 100,069.44 : x
  2. Step 2: Convert to fraction form
    324,727.68/487,140 = 100,069.44/x
  3. Step 3: Cross multiply
    324,727.68x = 487,140 × 100,069.44
  4. Step 4: Simplify right side
    324,727.68x = 48,747,827,001.60
  5. Step 5: Solve for x
    x = 48,747,827,001.60/324,727.68
  6. Step 6: Final answer
    x = 150,119.10

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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.