Home / 186,781.28-279,760.08-154,392.48

Finding the Fourth Proportional to 186,781.28, 279,760.08 and 154,392.48

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Solution

The fourth proportional to 186,781.28, 279,760.08 and 154,392.48 is: 231,248.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,781.28 : 279,760.08 = 154,392.48 : x
  2. Step 2: Convert to fraction form
    186,781.28/279,760.08 = 154,392.48/x
  3. Step 3: Cross multiply
    186,781.28x = 279,760.08 × 154,392.48
  4. Step 4: Simplify right side
    186,781.28x = 43,192,852,556.20
  5. Step 5: Solve for x
    x = 43,192,852,556.20/186,781.28
  6. Step 6: Final answer
    x = 231,248.30

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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.