Home / 186,405.09-279,608.51-79,773.45

Finding the Fourth Proportional to 186,405.09, 279,608.51 and 79,773.45

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Solution

The fourth proportional to 186,405.09, 279,608.51 and 79,773.45 is: 119,660.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,405.09 : 279,608.51 = 79,773.45 : x
  2. Step 2: Convert to fraction form
    186,405.09/279,608.51 = 79,773.45/x
  3. Step 3: Cross multiply
    186,405.09x = 279,608.51 × 79,773.45
  4. Step 4: Simplify right side
    186,405.09x = 22,305,335,492.06
  5. Step 5: Solve for x
    x = 22,305,335,492.06/186,405.09
  6. Step 6: Final answer
    x = 119,660.55

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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.