Home / 136,795.80-188,956.08-105,351.60

Finding the Fourth Proportional to 136,795.80, 188,956.08 and 105,351.60

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Solution

The fourth proportional to 136,795.80, 188,956.08 and 105,351.60 is: 145,522.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,795.80 : 188,956.08 = 105,351.60 : x
  2. Step 2: Convert to fraction form
    136,795.80/188,956.08 = 105,351.60/x
  3. Step 3: Cross multiply
    136,795.80x = 188,956.08 × 105,351.60
  4. Step 4: Simplify right side
    136,795.80x = 19,906,825,357.73
  5. Step 5: Solve for x
    x = 19,906,825,357.73/136,795.80
  6. Step 6: Final answer
    x = 145,522.20

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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.