Home / 131,869.44-181,991.52-75,299.04

Finding the Fourth Proportional to 131,869.44, 181,991.52 and 75,299.04

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Solution

The fourth proportional to 131,869.44, 181,991.52 and 75,299.04 is: 103,919.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,869.44 : 181,991.52 = 75,299.04 : x
  2. Step 2: Convert to fraction form
    131,869.44/181,991.52 = 75,299.04/x
  3. Step 3: Cross multiply
    131,869.44x = 181,991.52 × 75,299.04
  4. Step 4: Simplify right side
    131,869.44x = 13,703,786,744.14
  5. Step 5: Solve for x
    x = 13,703,786,744.14/131,869.44
  6. Step 6: Final answer
    x = 103,919.35

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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.