Home / 129,741.80-194,727.90-112,231.40

Finding the Fourth Proportional to 129,741.80, 194,727.90 and 112,231.40

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Solution

The fourth proportional to 129,741.80, 194,727.90 and 112,231.40 is: 168,446.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,741.80 : 194,727.90 = 112,231.40 : x
  2. Step 2: Convert to fraction form
    129,741.80/194,727.90 = 112,231.40/x
  3. Step 3: Cross multiply
    129,741.80x = 194,727.90 × 112,231.40
  4. Step 4: Simplify right side
    129,741.80x = 21,854,584,836.06
  5. Step 5: Solve for x
    x = 21,854,584,836.06/129,741.80
  6. Step 6: Final answer
    x = 168,446.75

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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.