Home / 170,077.80-255,311.10-99,996.60

Finding the Fourth Proportional to 170,077.80, 255,311.10 and 99,996.60

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Solution

The fourth proportional to 170,077.80, 255,311.10 and 99,996.60 is: 150,109.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,077.80 : 255,311.10 = 99,996.60 : x
  2. Step 2: Convert to fraction form
    170,077.80/255,311.10 = 99,996.60/x
  3. Step 3: Cross multiply
    170,077.80x = 255,311.10 × 99,996.60
  4. Step 4: Simplify right side
    170,077.80x = 25,530,241,942.26
  5. Step 5: Solve for x
    x = 25,530,241,942.26/170,077.80
  6. Step 6: Final answer
    x = 150,109.20

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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.