Home / 186,435.36-279,591.48-74,143.44

Finding the Fourth Proportional to 186,435.36, 279,591.48 and 74,143.44

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Solution

The fourth proportional to 186,435.36, 279,591.48 and 74,143.44 is: 111,190.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,435.36 : 279,591.48 = 74,143.44 : x
  2. Step 2: Convert to fraction form
    186,435.36/279,591.48 = 74,143.44/x
  3. Step 3: Cross multiply
    186,435.36x = 279,591.48 × 74,143.44
  4. Step 4: Simplify right side
    186,435.36x = 20,729,874,121.89
  5. Step 5: Solve for x
    x = 20,729,874,121.89/186,435.36
  6. Step 6: Final answer
    x = 111,190.68

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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.