Home / 141,292.89-194,993.73-77,631.48

Finding the Fourth Proportional to 141,292.89, 194,993.73 and 77,631.48

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Solution

The fourth proportional to 141,292.89, 194,993.73 and 77,631.48 is: 107,136.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,292.89 : 194,993.73 = 77,631.48 : x
  2. Step 2: Convert to fraction form
    141,292.89/194,993.73 = 77,631.48/x
  3. Step 3: Cross multiply
    141,292.89x = 194,993.73 × 77,631.48
  4. Step 4: Simplify right side
    141,292.89x = 15,137,651,850.62
  5. Step 5: Solve for x
    x = 15,137,651,850.62/141,292.89
  6. Step 6: Final answer
    x = 107,136.69

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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.