Home / 103,919.29-155,653.36-63,816.57

Finding the Fourth Proportional to 103,919.29, 155,653.36 and 63,816.57

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Solution

The fourth proportional to 103,919.29, 155,653.36 and 63,816.57 is: 95,586.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,919.29 : 155,653.36 = 63,816.57 : x
  2. Step 2: Convert to fraction form
    103,919.29/155,653.36 = 63,816.57/x
  3. Step 3: Cross multiply
    103,919.29x = 155,653.36 × 63,816.57
  4. Step 4: Simplify right side
    103,919.29x = 9,933,263,544.18
  5. Step 5: Solve for x
    x = 9,933,263,544.18/103,919.29
  6. Step 6: Final answer
    x = 95,586.33

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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.