Home / 186,738.18-279,976.06-68,394.14

Finding the Fourth Proportional to 186,738.18, 279,976.06 and 68,394.14

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Solution

The fourth proportional to 186,738.18, 279,976.06 and 68,394.14 is: 102,543.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,738.18 : 279,976.06 = 68,394.14 : x
  2. Step 2: Convert to fraction form
    186,738.18/279,976.06 = 68,394.14/x
  3. Step 3: Cross multiply
    186,738.18x = 279,976.06 × 68,394.14
  4. Step 4: Simplify right side
    186,738.18x = 19,148,721,844.29
  5. Step 5: Solve for x
    x = 19,148,721,844.29/186,738.18
  6. Step 6: Final answer
    x = 102,543.15

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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.