Home / 190,654.80-263,135.12-105,799.20

Finding the Fourth Proportional to 190,654.80, 263,135.12 and 105,799.20

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Solution

The fourth proportional to 190,654.80, 263,135.12 and 105,799.20 is: 146,020.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,654.80 : 263,135.12 = 105,799.20 : x
  2. Step 2: Convert to fraction form
    190,654.80/263,135.12 = 105,799.20/x
  3. Step 3: Cross multiply
    190,654.80x = 263,135.12 × 105,799.20
  4. Step 4: Simplify right side
    190,654.80x = 27,839,485,187.90
  5. Step 5: Solve for x
    x = 27,839,485,187.90/190,654.80
  6. Step 6: Final answer
    x = 146,020.37

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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.