Home / 141,284.91-211,720-71,067.63

Finding the Fourth Proportional to 141,284.91, 211,720 and 71,067.63

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Solution

The fourth proportional to 141,284.91, 211,720 and 71,067.63 is: 106,497.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,284.91 : 211,720 = 71,067.63 : x
  2. Step 2: Convert to fraction form
    141,284.91/211,720 = 71,067.63/x
  3. Step 3: Cross multiply
    141,284.91x = 211,720 × 71,067.63
  4. Step 4: Simplify right side
    141,284.91x = 15,046,438,623.60
  5. Step 5: Solve for x
    x = 15,046,438,623.60/141,284.91
  6. Step 6: Final answer
    x = 106,497.14

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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.