Home / 146,739.60-220,109.40-76,755.60

Finding the Fourth Proportional to 146,739.60, 220,109.40 and 76,755.60

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Solution

The fourth proportional to 146,739.60, 220,109.40 and 76,755.60 is: 115,133.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,739.60 : 220,109.40 = 76,755.60 : x
  2. Step 2: Convert to fraction form
    146,739.60/220,109.40 = 76,755.60/x
  3. Step 3: Cross multiply
    146,739.60x = 220,109.40 × 76,755.60
  4. Step 4: Simplify right side
    146,739.60x = 16,894,629,062.64
  5. Step 5: Solve for x
    x = 16,894,629,062.64/146,739.60
  6. Step 6: Final answer
    x = 115,133.40

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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.