Home / 186,212.73-279,100.38-86,161.60

Finding the Fourth Proportional to 186,212.73, 279,100.38 and 86,161.60

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Solution

The fourth proportional to 186,212.73, 279,100.38 and 86,161.60 is: 129,141.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,212.73 : 279,100.38 = 86,161.60 : x
  2. Step 2: Convert to fraction form
    186,212.73/279,100.38 = 86,161.60/x
  3. Step 3: Cross multiply
    186,212.73x = 279,100.38 × 86,161.60
  4. Step 4: Simplify right side
    186,212.73x = 24,047,735,301.41
  5. Step 5: Solve for x
    x = 24,047,735,301.41/186,212.73
  6. Step 6: Final answer
    x = 129,141.20

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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.