Home / 109,428.20-164,142.24-84,504.60

Finding the Fourth Proportional to 109,428.20, 164,142.24 and 84,504.60

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Solution

The fourth proportional to 109,428.20, 164,142.24 and 84,504.60 is: 126,756.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,428.20 : 164,142.24 = 84,504.60 : x
  2. Step 2: Convert to fraction form
    109,428.20/164,142.24 = 84,504.60/x
  3. Step 3: Cross multiply
    109,428.20x = 164,142.24 × 84,504.60
  4. Step 4: Simplify right side
    109,428.20x = 13,870,774,334.30
  5. Step 5: Solve for x
    x = 13,870,774,334.30/109,428.20
  6. Step 6: Final answer
    x = 126,756.85

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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.