Home / 165,713.40-248,610.60-76,948.20

Finding the Fourth Proportional to 165,713.40, 248,610.60 and 76,948.20

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Solution

The fourth proportional to 165,713.40, 248,610.60 and 76,948.20 is: 115,441.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,713.40 : 248,610.60 = 76,948.20 : x
  2. Step 2: Convert to fraction form
    165,713.40/248,610.60 = 76,948.20/x
  3. Step 3: Cross multiply
    165,713.40x = 248,610.60 × 76,948.20
  4. Step 4: Simplify right side
    165,713.40x = 19,130,138,170.92
  5. Step 5: Solve for x
    x = 19,130,138,170.92/165,713.40
  6. Step 6: Final answer
    x = 115,441.11

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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.