Home / 129,629.60-194,444.40-120,881.60

Finding the Fourth Proportional to 129,629.60, 194,444.40 and 120,881.60

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Solution

The fourth proportional to 129,629.60, 194,444.40 and 120,881.60 is: 181,322.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,629.60 : 194,444.40 = 120,881.60 : x
  2. Step 2: Convert to fraction form
    129,629.60/194,444.40 = 120,881.60/x
  3. Step 3: Cross multiply
    129,629.60x = 194,444.40 × 120,881.60
  4. Step 4: Simplify right side
    129,629.60x = 23,504,750,183.04
  5. Step 5: Solve for x
    x = 23,504,750,183.04/129,629.60
  6. Step 6: Final answer
    x = 181,322.40

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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.