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Finding the Fourth Proportional to 136,728.40, 205,092.60 and 101,736.40

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Solution

The fourth proportional to 136,728.40, 205,092.60 and 101,736.40 is: 152,604.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,728.40 : 205,092.60 = 101,736.40 : x
  2. Step 2: Convert to fraction form
    136,728.40/205,092.60 = 101,736.40/x
  3. Step 3: Cross multiply
    136,728.40x = 205,092.60 × 101,736.40
  4. Step 4: Simplify right side
    136,728.40x = 20,865,382,790.64
  5. Step 5: Solve for x
    x = 20,865,382,790.64/136,728.40
  6. Step 6: Final answer
    x = 152,604.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.