Home / 141,140.31-211,433.66-81,851.42

Finding the Fourth Proportional to 141,140.31, 211,433.66 and 81,851.42

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Solution

The fourth proportional to 141,140.31, 211,433.66 and 81,851.42 is: 122,616.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,140.31 : 211,433.66 = 81,851.42 : x
  2. Step 2: Convert to fraction form
    141,140.31/211,433.66 = 81,851.42/x
  3. Step 3: Cross multiply
    141,140.31x = 211,433.66 × 81,851.42
  4. Step 4: Simplify right side
    141,140.31x = 17,306,145,306.80
  5. Step 5: Solve for x
    x = 17,306,145,306.80/141,140.31
  6. Step 6: Final answer
    x = 122,616.60

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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.