Home / 179,971.60-269,957.40-80,131.60

Finding the Fourth Proportional to 179,971.60, 269,957.40 and 80,131.60

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Solution

The fourth proportional to 179,971.60, 269,957.40 and 80,131.60 is: 120,197.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,971.60 : 269,957.40 = 80,131.60 : x
  2. Step 2: Convert to fraction form
    179,971.60/269,957.40 = 80,131.60/x
  3. Step 3: Cross multiply
    179,971.60x = 269,957.40 × 80,131.60
  4. Step 4: Simplify right side
    179,971.60x = 21,632,118,393.84
  5. Step 5: Solve for x
    x = 21,632,118,393.84/179,971.60
  6. Step 6: Final answer
    x = 120,197.40

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1.5x scale

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.