Home / 80,972.08-122,074.70-75,264.01

Finding the Fourth Proportional to 80,972.08, 122,074.70 and 75,264.01

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Solution

The fourth proportional to 80,972.08, 122,074.70 and 75,264.01 is: 113,469.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,972.08 : 122,074.70 = 75,264.01 : x
  2. Step 2: Convert to fraction form
    80,972.08/122,074.70 = 75,264.01/x
  3. Step 3: Cross multiply
    80,972.08x = 122,074.70 × 75,264.01
  4. Step 4: Simplify right side
    80,972.08x = 9,187,831,441.55
  5. Step 5: Solve for x
    x = 9,187,831,441.55/80,972.08
  6. Step 6: Final answer
    x = 113,469.13

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.