Home / 141,016.90-211,713.08-81,895

Finding the Fourth Proportional to 141,016.90, 211,713.08 and 81,895

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Solution

The fourth proportional to 141,016.90, 211,713.08 and 81,895 is: 122,951.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,016.90 : 211,713.08 = 81,895 : x
  2. Step 2: Convert to fraction form
    141,016.90/211,713.08 = 81,895/x
  3. Step 3: Cross multiply
    141,016.90x = 211,713.08 × 81,895
  4. Step 4: Simplify right side
    141,016.90x = 17,338,242,686.60
  5. Step 5: Solve for x
    x = 17,338,242,686.60/141,016.90
  6. Step 6: Final answer
    x = 122,951.52

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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.