Home / 186,641.40-279,975.78-79,921.26

Finding the Fourth Proportional to 186,641.40, 279,975.78 and 79,921.26

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Solution

The fourth proportional to 186,641.40, 279,975.78 and 79,921.26 is: 119,887.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,641.40 : 279,975.78 = 79,921.26 : x
  2. Step 2: Convert to fraction form
    186,641.40/279,975.78 = 79,921.26/x
  3. Step 3: Cross multiply
    186,641.40x = 279,975.78 × 79,921.26
  4. Step 4: Simplify right side
    186,641.40x = 22,376,017,107.08
  5. Step 5: Solve for x
    x = 22,376,017,107.08/186,641.40
  6. Step 6: Final answer
    x = 119,887.75

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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.