Home / 261,741.54-392,653.62-111,982.80

Finding the Fourth Proportional to 261,741.54, 392,653.62 and 111,982.80

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Solution

The fourth proportional to 261,741.54, 392,653.62 and 111,982.80 is: 167,991.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,741.54 : 392,653.62 = 111,982.80 : x
  2. Step 2: Convert to fraction form
    261,741.54/392,653.62 = 111,982.80/x
  3. Step 3: Cross multiply
    261,741.54x = 392,653.62 × 111,982.80
  4. Step 4: Simplify right side
    261,741.54x = 43,970,451,797.74
  5. Step 5: Solve for x
    x = 43,970,451,797.74/261,741.54
  6. Step 6: Final answer
    x = 167,991.87

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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.