Home / 141,204.48-211,908.69-81,961.08

Finding the Fourth Proportional to 141,204.48, 211,908.69 and 81,961.08

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Solution

The fourth proportional to 141,204.48, 211,908.69 and 81,961.08 is: 123,000.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,204.48 : 211,908.69 = 81,961.08 : x
  2. Step 2: Convert to fraction form
    141,204.48/211,908.69 = 81,961.08/x
  3. Step 3: Cross multiply
    141,204.48x = 211,908.69 × 81,961.08
  4. Step 4: Simplify right side
    141,204.48x = 17,368,265,093.79
  5. Step 5: Solve for x
    x = 17,368,265,093.79/141,204.48
  6. Step 6: Final answer
    x = 123,000.81

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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.