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Finding the Fourth Proportional to 146,236.79, 201,807.25 and 79,168.79

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Solution

The fourth proportional to 146,236.79, 201,807.25 and 79,168.79 is: 109,253.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,236.79 : 201,807.25 = 79,168.79 : x
  2. Step 2: Convert to fraction form
    146,236.79/201,807.25 = 79,168.79/x
  3. Step 3: Cross multiply
    146,236.79x = 201,807.25 × 79,168.79
  4. Step 4: Simplify right side
    146,236.79x = 15,976,836,102.32
  5. Step 5: Solve for x
    x = 15,976,836,102.32/146,236.79
  6. Step 6: Final answer
    x = 109,253.19

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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.