Home / 103,635.96-155,453.94-68,567.41

Finding the Fourth Proportional to 103,635.96, 155,453.94 and 68,567.41

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Solution

The fourth proportional to 103,635.96, 155,453.94 and 68,567.41 is: 102,851.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,635.96 : 155,453.94 = 68,567.41 : x
  2. Step 2: Convert to fraction form
    103,635.96/155,453.94 = 68,567.41/x
  3. Step 3: Cross multiply
    103,635.96x = 155,453.94 × 68,567.41
  4. Step 4: Simplify right side
    103,635.96x = 10,659,074,040.10
  5. Step 5: Solve for x
    x = 10,659,074,040.10/103,635.96
  6. Step 6: Final answer
    x = 102,851.12

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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.