Home / 186,441.10-279,698.10-74,102.20

Finding the Fourth Proportional to 186,441.10, 279,698.10 and 74,102.20

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Solution

The fourth proportional to 186,441.10, 279,698.10 and 74,102.20 is: 111,167.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,441.10 : 279,698.10 = 74,102.20 : x
  2. Step 2: Convert to fraction form
    186,441.10/279,698.10 = 74,102.20/x
  3. Step 3: Cross multiply
    186,441.10x = 279,698.10 × 74,102.20
  4. Step 4: Simplify right side
    186,441.10x = 20,726,244,545.82
  5. Step 5: Solve for x
    x = 20,726,244,545.82/186,441.10
  6. Step 6: Final answer
    x = 111,167.79

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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.