Home / 324,772.20-487,071.90-100,132.20

Finding the Fourth Proportional to 324,772.20, 487,071.90 and 100,132.20

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Solution

The fourth proportional to 324,772.20, 487,071.90 and 100,132.20 is: 150,171.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,772.20 : 487,071.90 = 100,132.20 : x
  2. Step 2: Convert to fraction form
    324,772.20/487,071.90 = 100,132.20/x
  3. Step 3: Cross multiply
    324,772.20x = 487,071.90 × 100,132.20
  4. Step 4: Simplify right side
    324,772.20x = 48,771,580,905.18
  5. Step 5: Solve for x
    x = 48,771,580,905.18/324,772.20
  6. Step 6: Final answer
    x = 150,171.66

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1.5x scale

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.