Home / 165,420.50-248,155.38-76,682.97

Finding the Fourth Proportional to 165,420.50, 248,155.38 and 76,682.97

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Solution

The fourth proportional to 165,420.50, 248,155.38 and 76,682.97 is: 115,035.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,420.50 : 248,155.38 = 76,682.97 : x
  2. Step 2: Convert to fraction form
    165,420.50/248,155.38 = 76,682.97/x
  3. Step 3: Cross multiply
    165,420.50x = 248,155.38 × 76,682.97
  4. Step 4: Simplify right side
    165,420.50x = 19,029,291,559.88
  5. Step 5: Solve for x
    x = 19,029,291,559.88/165,420.50
  6. Step 6: Final answer
    x = 115,035.88

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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.