Home / 100,850.14-139,172.06-55,527.20

Finding the Fourth Proportional to 100,850.14, 139,172.06 and 55,527.20

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Solution

The fourth proportional to 100,850.14, 139,172.06 and 55,527.20 is: 76,626.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,850.14 : 139,172.06 = 55,527.20 : x
  2. Step 2: Convert to fraction form
    100,850.14/139,172.06 = 55,527.20/x
  3. Step 3: Cross multiply
    100,850.14x = 139,172.06 × 55,527.20
  4. Step 4: Simplify right side
    100,850.14x = 7,727,834,252.99
  5. Step 5: Solve for x
    x = 7,727,834,252.99/100,850.14
  6. Step 6: Final answer
    x = 76,626.91

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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.