Home / 113,219.45-156,202.99-67,912.10

Finding the Fourth Proportional to 113,219.45, 156,202.99 and 67,912.10

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Solution

The fourth proportional to 113,219.45, 156,202.99 and 67,912.10 is: 93,694.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,219.45 : 156,202.99 = 67,912.10 : x
  2. Step 2: Convert to fraction form
    113,219.45/156,202.99 = 67,912.10/x
  3. Step 3: Cross multiply
    113,219.45x = 156,202.99 × 67,912.10
  4. Step 4: Simplify right side
    113,219.45x = 10,608,073,077.18
  5. Step 5: Solve for x
    x = 10,608,073,077.18/113,219.45
  6. Step 6: Final answer
    x = 93,694.79

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1.5x scale

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.