Home / 324,855.12-487,135.08-100,173.72

Finding the Fourth Proportional to 324,855.12, 487,135.08 and 100,173.72

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Solution

The fourth proportional to 324,855.12, 487,135.08 and 100,173.72 is: 150,215.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,855.12 : 487,135.08 = 100,173.72 : x
  2. Step 2: Convert to fraction form
    324,855.12/487,135.08 = 100,173.72/x
  3. Step 3: Cross multiply
    324,855.12x = 487,135.08 × 100,173.72
  4. Step 4: Simplify right side
    324,855.12x = 48,798,133,106.10
  5. Step 5: Solve for x
    x = 48,798,133,106.10/324,855.12
  6. Step 6: Final answer
    x = 150,215.07

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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.