Home / 120,900.96-166,831.92-111,984.48

Finding the Fourth Proportional to 120,900.96, 166,831.92 and 111,984.48

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Solution

The fourth proportional to 120,900.96, 166,831.92 and 111,984.48 is: 154,528.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,900.96 : 166,831.92 = 111,984.48 : x
  2. Step 2: Convert to fraction form
    120,900.96/166,831.92 = 111,984.48/x
  3. Step 3: Cross multiply
    120,900.96x = 166,831.92 × 111,984.48
  4. Step 4: Simplify right side
    120,900.96x = 18,682,585,808.60
  5. Step 5: Solve for x
    x = 18,682,585,808.60/120,900.96
  6. Step 6: Final answer
    x = 154,528.02

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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.