Home / 141,571.11-195,376.16-81,151.79

Finding the Fourth Proportional to 141,571.11, 195,376.16 and 81,151.79

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Solution

The fourth proportional to 141,571.11, 195,376.16 and 81,151.79 is: 111,994.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,571.11 : 195,376.16 = 81,151.79 : x
  2. Step 2: Convert to fraction form
    141,571.11/195,376.16 = 81,151.79/x
  3. Step 3: Cross multiply
    141,571.11x = 195,376.16 × 81,151.79
  4. Step 4: Simplify right side
    141,571.11x = 15,855,125,798.65
  5. Step 5: Solve for x
    x = 15,855,125,798.65/141,571.11
  6. Step 6: Final answer
    x = 111,994.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.