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Finding the Fourth Proportional to 80,202.68, 110,606.16 and 68,868.32

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Solution

The fourth proportional to 80,202.68, 110,606.16 and 68,868.32 is: 94,975.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,202.68 : 110,606.16 = 68,868.32 : x
  2. Step 2: Convert to fraction form
    80,202.68/110,606.16 = 68,868.32/x
  3. Step 3: Cross multiply
    80,202.68x = 110,606.16 × 68,868.32
  4. Step 4: Simplify right side
    80,202.68x = 7,617,260,420.85
  5. Step 5: Solve for x
    x = 7,617,260,420.85/80,202.68
  6. Step 6: Final answer
    x = 94,975.14

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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.