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Finding the Fourth Proportional to 129,361.65, 193,976.72 and 59,180.82

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Solution

The fourth proportional to 129,361.65, 193,976.72 and 59,180.82 is: 88,741.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,361.65 : 193,976.72 = 59,180.82 : x
  2. Step 2: Convert to fraction form
    129,361.65/193,976.72 = 59,180.82/x
  3. Step 3: Cross multiply
    129,361.65x = 193,976.72 × 59,180.82
  4. Step 4: Simplify right side
    129,361.65x = 11,479,701,350.51
  5. Step 5: Solve for x
    x = 11,479,701,350.51/129,361.65
  6. Step 6: Final answer
    x = 88,741.15

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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.