Home / 103,918.29-155,651.86-63,815.57

Finding the Fourth Proportional to 103,918.29, 155,651.86 and 63,815.57

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Solution

The fourth proportional to 103,918.29, 155,651.86 and 63,815.57 is: 95,584.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,918.29 : 155,651.86 = 63,815.57 : x
  2. Step 2: Convert to fraction form
    103,918.29/155,651.86 = 63,815.57/x
  3. Step 3: Cross multiply
    103,918.29x = 155,651.86 × 63,815.57
  4. Step 4: Simplify right side
    103,918.29x = 9,933,012,167.46
  5. Step 5: Solve for x
    x = 9,933,012,167.46/103,918.29
  6. Step 6: Final answer
    x = 95,584.83

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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.