Home / 211,142.08-291,375.66-115,650.64

Finding the Fourth Proportional to 211,142.08, 291,375.66 and 115,650.64

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Solution

The fourth proportional to 211,142.08, 291,375.66 and 115,650.64 is: 159,597.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,142.08 : 291,375.66 = 115,650.64 : x
  2. Step 2: Convert to fraction form
    211,142.08/291,375.66 = 115,650.64/x
  3. Step 3: Cross multiply
    211,142.08x = 291,375.66 × 115,650.64
  4. Step 4: Simplify right side
    211,142.08x = 33,697,781,559.42
  5. Step 5: Solve for x
    x = 33,697,781,559.42/211,142.08
  6. Step 6: Final answer
    x = 159,597.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.