Home / 190,654.78-263,135.10-105,799.18

Finding the Fourth Proportional to 190,654.78, 263,135.10 and 105,799.18

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Solution

The fourth proportional to 190,654.78, 263,135.10 and 105,799.18 is: 146,020.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,654.78 : 263,135.10 = 105,799.18 : x
  2. Step 2: Convert to fraction form
    190,654.78/263,135.10 = 105,799.18/x
  3. Step 3: Cross multiply
    190,654.78x = 263,135.10 × 105,799.18
  4. Step 4: Simplify right side
    190,654.78x = 27,839,477,809.22
  5. Step 5: Solve for x
    x = 27,839,477,809.22/190,654.78
  6. Step 6: Final answer
    x = 146,020.35

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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.