Home / 111,977.06-167,964.57-45,401.36

Finding the Fourth Proportional to 111,977.06, 167,964.57 and 45,401.36

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Solution

The fourth proportional to 111,977.06, 167,964.57 and 45,401.36 is: 68,101.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,977.06 : 167,964.57 = 45,401.36 : x
  2. Step 2: Convert to fraction form
    111,977.06/167,964.57 = 45,401.36/x
  3. Step 3: Cross multiply
    111,977.06x = 167,964.57 × 45,401.36
  4. Step 4: Simplify right side
    111,977.06x = 7,625,819,069.99
  5. Step 5: Solve for x
    x = 7,625,819,069.99/111,977.06
  6. Step 6: Final answer
    x = 68,101.62

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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.