Home / 165,640.68-248,130.54-76,773.96

Finding the Fourth Proportional to 165,640.68, 248,130.54 and 76,773.96

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Solution

The fourth proportional to 165,640.68, 248,130.54 and 76,773.96 is: 115,007.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,640.68 : 248,130.54 = 76,773.96 : x
  2. Step 2: Convert to fraction form
    165,640.68/248,130.54 = 76,773.96/x
  3. Step 3: Cross multiply
    165,640.68x = 248,130.54 × 76,773.96
  4. Step 4: Simplify right side
    165,640.68x = 19,049,964,152.74
  5. Step 5: Solve for x
    x = 19,049,964,152.74/165,640.68
  6. Step 6: Final answer
    x = 115,007.76

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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.