Home / 180,677.28-270,972.36-75,439.20

Finding the Fourth Proportional to 180,677.28, 270,972.36 and 75,439.20

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Solution

The fourth proportional to 180,677.28, 270,972.36 and 75,439.20 is: 113,140.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,677.28 : 270,972.36 = 75,439.20 : x
  2. Step 2: Convert to fraction form
    180,677.28/270,972.36 = 75,439.20/x
  3. Step 3: Cross multiply
    180,677.28x = 270,972.36 × 75,439.20
  4. Step 4: Simplify right side
    180,677.28x = 20,441,938,060.51
  5. Step 5: Solve for x
    x = 20,441,938,060.51/180,677.28
  6. Step 6: Final answer
    x = 113,140.61

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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.