Home / 211,067.24-291,215.05-135,659.48

Finding the Fourth Proportional to 211,067.24, 291,215.05 and 135,659.48

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Solution

The fourth proportional to 211,067.24, 291,215.05 and 135,659.48 is: 187,172.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,067.24 : 291,215.05 = 135,659.48 : x
  2. Step 2: Convert to fraction form
    211,067.24/291,215.05 = 135,659.48/x
  3. Step 3: Cross multiply
    211,067.24x = 291,215.05 × 135,659.48
  4. Step 4: Simplify right side
    211,067.24x = 39,506,080,455.95
  5. Step 5: Solve for x
    x = 39,506,080,455.95/211,067.24
  6. Step 6: Final answer
    x = 187,172.97

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1.5x scale

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.