Home / 106,172.20-146,491.14-68,401

Finding the Fourth Proportional to 106,172.20, 146,491.14 and 68,401

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Solution

The fourth proportional to 106,172.20, 146,491.14 and 68,401 is: 94,376.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,172.20 : 146,491.14 = 68,401 : x
  2. Step 2: Convert to fraction form
    106,172.20/146,491.14 = 68,401/x
  3. Step 3: Cross multiply
    106,172.20x = 146,491.14 × 68,401
  4. Step 4: Simplify right side
    106,172.20x = 10,020,140,467.14
  5. Step 5: Solve for x
    x = 10,020,140,467.14/106,172.20
  6. Step 6: Final answer
    x = 94,376.31

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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.