Home / 141,139.06-211,431.79-81,850.17

Finding the Fourth Proportional to 141,139.06, 211,431.79 and 81,850.17

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Solution

The fourth proportional to 141,139.06, 211,431.79 and 81,850.17 is: 122,614.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,139.06 : 211,431.79 = 81,850.17 : x
  2. Step 2: Convert to fraction form
    141,139.06/211,431.79 = 81,850.17/x
  3. Step 3: Cross multiply
    141,139.06x = 211,431.79 × 81,850.17
  4. Step 4: Simplify right side
    141,139.06x = 17,305,727,545.65
  5. Step 5: Solve for x
    x = 17,305,727,545.65/141,139.06
  6. Step 6: Final answer
    x = 122,614.73

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1.5x scale

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.