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Finding the Fourth Proportional to 131,633.92, 181,657.92 and 75,050.56

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Solution

The fourth proportional to 131,633.92, 181,657.92 and 75,050.56 is: 103,571.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,633.92 : 181,657.92 = 75,050.56 : x
  2. Step 2: Convert to fraction form
    131,633.92/181,657.92 = 75,050.56/x
  3. Step 3: Cross multiply
    131,633.92x = 181,657.92 × 75,050.56
  4. Step 4: Simplify right side
    131,633.92x = 13,633,528,624.44
  5. Step 5: Solve for x
    x = 13,633,528,624.44/131,633.92
  6. Step 6: Final answer
    x = 103,571.55

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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.