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Finding the Fourth Proportional to 146,179.88, 201,728.25 and 79,111.88

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Solution

The fourth proportional to 146,179.88, 201,728.25 and 79,111.88 is: 109,174.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,179.88 : 201,728.25 = 79,111.88 : x
  2. Step 2: Convert to fraction form
    146,179.88/201,728.25 = 79,111.88/x
  3. Step 3: Cross multiply
    146,179.88x = 201,728.25 × 79,111.88
  4. Step 4: Simplify right side
    146,179.88x = 15,959,100,097.97
  5. Step 5: Solve for x
    x = 15,959,100,097.97/146,179.88
  6. Step 6: Final answer
    x = 109,174.40

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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.