Home / 165,499.20-248,054.40-76,564.85

Finding the Fourth Proportional to 165,499.20, 248,054.40 and 76,564.85

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Solution

The fourth proportional to 165,499.20, 248,054.40 and 76,564.85 is: 114,757.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,499.20 : 248,054.40 = 76,564.85 : x
  2. Step 2: Convert to fraction form
    165,499.20/248,054.40 = 76,564.85/x
  3. Step 3: Cross multiply
    165,499.20x = 248,054.40 × 76,564.85
  4. Step 4: Simplify right side
    165,499.20x = 18,992,246,687.57
  5. Step 5: Solve for x
    x = 18,992,246,687.57/165,499.20
  6. Step 6: Final answer
    x = 114,757.33

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1.5x scale

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.