Home / 129,618.40-194,449.20-50,735.20

Finding the Fourth Proportional to 129,618.40, 194,449.20 and 50,735.20

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Solution

The fourth proportional to 129,618.40, 194,449.20 and 50,735.20 is: 76,111.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,618.40 : 194,449.20 = 50,735.20 : x
  2. Step 2: Convert to fraction form
    129,618.40/194,449.20 = 50,735.20/x
  3. Step 3: Cross multiply
    129,618.40x = 194,449.20 × 50,735.20
  4. Step 4: Simplify right side
    129,618.40x = 9,865,419,051.84
  5. Step 5: Solve for x
    x = 9,865,419,051.84/129,618.40
  6. Step 6: Final answer
    x = 76,111.25

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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.