Home / 180,078.60-270,287.40-91,395.75

Finding the Fourth Proportional to 180,078.60, 270,287.40 and 91,395.75

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Solution

The fourth proportional to 180,078.60, 270,287.40 and 91,395.75 is: 137,179.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,078.60 : 270,287.40 = 91,395.75 : x
  2. Step 2: Convert to fraction form
    180,078.60/270,287.40 = 91,395.75/x
  3. Step 3: Cross multiply
    180,078.60x = 270,287.40 × 91,395.75
  4. Step 4: Simplify right side
    180,078.60x = 24,703,119,638.55
  5. Step 5: Solve for x
    x = 24,703,119,638.55/180,078.60
  6. Step 6: Final answer
    x = 137,179.65

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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.