Home / 165,016.80-247,485.56-76,185

Finding the Fourth Proportional to 165,016.80, 247,485.56 and 76,185

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Solution

The fourth proportional to 165,016.80, 247,485.56 and 76,185 is: 114,259.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,016.80 : 247,485.56 = 76,185 : x
  2. Step 2: Convert to fraction form
    165,016.80/247,485.56 = 76,185/x
  3. Step 3: Cross multiply
    165,016.80x = 247,485.56 × 76,185
  4. Step 4: Simplify right side
    165,016.80x = 18,854,687,388.60
  5. Step 5: Solve for x
    x = 18,854,687,388.60/165,016.80
  6. Step 6: Final answer
    x = 114,259.20

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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.