Home / 121,019.54-166,833.84-80,718.60

Finding the Fourth Proportional to 121,019.54, 166,833.84 and 80,718.60

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Solution

The fourth proportional to 121,019.54, 166,833.84 and 80,718.60 is: 111,276.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,019.54 : 166,833.84 = 80,718.60 : x
  2. Step 2: Convert to fraction form
    121,019.54/166,833.84 = 80,718.60/x
  3. Step 3: Cross multiply
    121,019.54x = 166,833.84 × 80,718.60
  4. Step 4: Simplify right side
    121,019.54x = 13,466,593,997.42
  5. Step 5: Solve for x
    x = 13,466,593,997.42/121,019.54
  6. Step 6: Final answer
    x = 111,276.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.