Home / 165,768.40-248,782.20-77,032.90

Finding the Fourth Proportional to 165,768.40, 248,782.20 and 77,032.90

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Solution

The fourth proportional to 165,768.40, 248,782.20 and 77,032.90 is: 115,609.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,768.40 : 248,782.20 = 77,032.90 : x
  2. Step 2: Convert to fraction form
    165,768.40/248,782.20 = 77,032.90/x
  3. Step 3: Cross multiply
    165,768.40x = 248,782.20 × 77,032.90
  4. Step 4: Simplify right side
    165,768.40x = 19,164,414,334.38
  5. Step 5: Solve for x
    x = 19,164,414,334.38/165,768.40
  6. Step 6: Final answer
    x = 115,609.58

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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.