Home / 68,077.62-102,121.30-18,157.46

Finding the Fourth Proportional to 68,077.62, 102,121.30 and 18,157.46

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Solution

The fourth proportional to 68,077.62, 102,121.30 and 18,157.46 is: 27,237.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,077.62 : 102,121.30 = 18,157.46 : x
  2. Step 2: Convert to fraction form
    68,077.62/102,121.30 = 18,157.46/x
  3. Step 3: Cross multiply
    68,077.62x = 102,121.30 × 18,157.46
  4. Step 4: Simplify right side
    68,077.62x = 1,854,263,419.90
  5. Step 5: Solve for x
    x = 1,854,263,419.90/68,077.62
  6. Step 6: Final answer
    x = 27,237.49

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1.5x scale

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.