Home / 213,496.64-320,445.60-108,391.04

Finding the Fourth Proportional to 213,496.64, 320,445.60 and 108,391.04

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Solution

The fourth proportional to 213,496.64, 320,445.60 and 108,391.04 is: 162,688.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,496.64 : 320,445.60 = 108,391.04 : x
  2. Step 2: Convert to fraction form
    213,496.64/320,445.60 = 108,391.04/x
  3. Step 3: Cross multiply
    213,496.64x = 320,445.60 × 108,391.04
  4. Step 4: Simplify right side
    213,496.64x = 34,733,431,847.42
  5. Step 5: Solve for x
    x = 34,733,431,847.42/213,496.64
  6. Step 6: Final answer
    x = 162,688.42

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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.