Home / 186,845.40-280,132.32-74,491.92

Finding the Fourth Proportional to 186,845.40, 280,132.32 and 74,491.92

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Solution

The fourth proportional to 186,845.40, 280,132.32 and 74,491.92 is: 111,683.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,845.40 : 280,132.32 = 74,491.92 : x
  2. Step 2: Convert to fraction form
    186,845.40/280,132.32 = 74,491.92/x
  3. Step 3: Cross multiply
    186,845.40x = 280,132.32 × 74,491.92
  4. Step 4: Simplify right side
    186,845.40x = 20,867,595,241.10
  5. Step 5: Solve for x
    x = 20,867,595,241.10/186,845.40
  6. Step 6: Final answer
    x = 111,683.75

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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.