Home / 100,850.43-139,172.48-55,527.25

Finding the Fourth Proportional to 100,850.43, 139,172.48 and 55,527.25

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Solution

The fourth proportional to 100,850.43, 139,172.48 and 55,527.25 is: 76,626.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,850.43 : 139,172.48 = 55,527.25 : x
  2. Step 2: Convert to fraction form
    100,850.43/139,172.48 = 55,527.25/x
  3. Step 3: Cross multiply
    100,850.43x = 139,172.48 × 55,527.25
  4. Step 4: Simplify right side
    100,850.43x = 7,727,864,542.27
  5. Step 5: Solve for x
    x = 7,727,864,542.27/100,850.43
  6. Step 6: Final answer
    x = 76,626.99

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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.