Home / 131,231.60-196,847.40-104,987.60

Finding the Fourth Proportional to 131,231.60, 196,847.40 and 104,987.60

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Solution

The fourth proportional to 131,231.60, 196,847.40 and 104,987.60 is: 157,481.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,231.60 : 196,847.40 = 104,987.60 : x
  2. Step 2: Convert to fraction form
    131,231.60/196,847.40 = 104,987.60/x
  3. Step 3: Cross multiply
    131,231.60x = 196,847.40 × 104,987.60
  4. Step 4: Simplify right side
    131,231.60x = 20,666,536,092.24
  5. Step 5: Solve for x
    x = 20,666,536,092.24/131,231.60
  6. Step 6: Final answer
    x = 157,481.40

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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.