Home / 211,419.39-291,747.65-120,757.44

Finding the Fourth Proportional to 211,419.39, 291,747.65 and 120,757.44

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Solution

The fourth proportional to 211,419.39, 291,747.65 and 120,757.44 is: 166,638.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,419.39 : 291,747.65 = 120,757.44 : x
  2. Step 2: Convert to fraction form
    211,419.39/291,747.65 = 120,757.44/x
  3. Step 3: Cross multiply
    211,419.39x = 291,747.65 × 120,757.44
  4. Step 4: Simplify right side
    211,419.39x = 35,230,698,736.23
  5. Step 5: Solve for x
    x = 35,230,698,736.23/211,419.39
  6. Step 6: Final answer
    x = 166,638.92

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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.