Home / 179,985.38-270,027.20-78,765.03

Finding the Fourth Proportional to 179,985.38, 270,027.20 and 78,765.03

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Solution

The fourth proportional to 179,985.38, 270,027.20 and 78,765.03 is: 118,169.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,985.38 : 270,027.20 = 78,765.03 : x
  2. Step 2: Convert to fraction form
    179,985.38/270,027.20 = 78,765.03/x
  3. Step 3: Cross multiply
    179,985.38x = 270,027.20 × 78,765.03
  4. Step 4: Simplify right side
    179,985.38x = 21,268,700,705.73
  5. Step 5: Solve for x
    x = 21,268,700,705.73/179,985.38
  6. Step 6: Final answer
    x = 118,169.05

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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.