Home / 165,719.40-248,619.60-76,954.20

Finding the Fourth Proportional to 165,719.40, 248,619.60 and 76,954.20

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Solution

The fourth proportional to 165,719.40, 248,619.60 and 76,954.20 is: 115,450.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,719.40 : 248,619.60 = 76,954.20 : x
  2. Step 2: Convert to fraction form
    165,719.40/248,619.60 = 76,954.20/x
  3. Step 3: Cross multiply
    165,719.40x = 248,619.60 × 76,954.20
  4. Step 4: Simplify right side
    165,719.40x = 19,132,322,422.32
  5. Step 5: Solve for x
    x = 19,132,322,422.32/165,719.40
  6. Step 6: Final answer
    x = 115,450.11

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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.