Home / 318,499.20-477,822.60-108,137.13

Finding the Fourth Proportional to 318,499.20, 477,822.60 and 108,137.13

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Solution

The fourth proportional to 318,499.20, 477,822.60 and 108,137.13 is: 162,230.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,499.20 : 477,822.60 = 108,137.13 : x
  2. Step 2: Convert to fraction form
    318,499.20/477,822.60 = 108,137.13/x
  3. Step 3: Cross multiply
    318,499.20x = 477,822.60 × 108,137.13
  4. Step 4: Simplify right side
    318,499.20x = 51,670,364,613.14
  5. Step 5: Solve for x
    x = 51,670,364,613.14/318,499.20
  6. Step 6: Final answer
    x = 162,230.75

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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.