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Finding the Fourth Proportional to 186,071.76, 279,107.76 and 80,833.32

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Solution

The fourth proportional to 186,071.76, 279,107.76 and 80,833.32 is: 121,250.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,071.76 : 279,107.76 = 80,833.32 : x
  2. Step 2: Convert to fraction form
    186,071.76/279,107.76 = 80,833.32/x
  3. Step 3: Cross multiply
    186,071.76x = 279,107.76 × 80,833.32
  4. Step 4: Simplify right side
    186,071.76x = 22,561,206,878.56
  5. Step 5: Solve for x
    x = 22,561,206,878.56/186,071.76
  6. Step 6: Final answer
    x = 121,250.03

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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.