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Finding the Fourth Proportional to 146,507.28, 202,180.16 and 79,439.28

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Solution

The fourth proportional to 146,507.28, 202,180.16 and 79,439.28 is: 109,626.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,507.28 : 202,180.16 = 79,439.28 : x
  2. Step 2: Convert to fraction form
    146,507.28/202,180.16 = 79,439.28/x
  3. Step 3: Cross multiply
    146,507.28x = 202,180.16 × 79,439.28
  4. Step 4: Simplify right side
    146,507.28x = 16,061,046,340.68
  5. Step 5: Solve for x
    x = 16,061,046,340.68/146,507.28
  6. Step 6: Final answer
    x = 109,626.27

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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.