Home / 100,969.26-139,361.33-62,757.67

Finding the Fourth Proportional to 100,969.26, 139,361.33 and 62,757.67

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Solution

The fourth proportional to 100,969.26, 139,361.33 and 62,757.67 is: 86,620.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,969.26 : 139,361.33 = 62,757.67 : x
  2. Step 2: Convert to fraction form
    100,969.26/139,361.33 = 62,757.67/x
  3. Step 3: Cross multiply
    100,969.26x = 139,361.33 × 62,757.67
  4. Step 4: Simplify right side
    100,969.26x = 8,745,992,358.90
  5. Step 5: Solve for x
    x = 8,745,992,358.90/100,969.26
  6. Step 6: Final answer
    x = 86,620.35

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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.