Home / 141,299.75-194,993.62-77,637.55

Finding the Fourth Proportional to 141,299.75, 194,993.62 and 77,637.55

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Solution

The fourth proportional to 141,299.75, 194,993.62 and 77,637.55 is: 107,139.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,299.75 : 194,993.62 = 77,637.55 : x
  2. Step 2: Convert to fraction form
    141,299.75/194,993.62 = 77,637.55/x
  3. Step 3: Cross multiply
    141,299.75x = 194,993.62 × 77,637.55
  4. Step 4: Simplify right side
    141,299.75x = 15,138,826,922.43
  5. Step 5: Solve for x
    x = 15,138,826,922.43/141,299.75
  6. Step 6: Final answer
    x = 107,139.80

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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.