Home / 131,668.28-181,651.46-91,361.86

Finding the Fourth Proportional to 131,668.28, 181,651.46 and 91,361.86

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Solution

The fourth proportional to 131,668.28, 181,651.46 and 91,361.86 is: 126,044.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,668.28 : 181,651.46 = 91,361.86 : x
  2. Step 2: Convert to fraction form
    131,668.28/181,651.46 = 91,361.86/x
  3. Step 3: Cross multiply
    131,668.28x = 181,651.46 × 91,361.86
  4. Step 4: Simplify right side
    131,668.28x = 16,596,015,257.32
  5. Step 5: Solve for x
    x = 16,596,015,257.32/131,668.28
  6. Step 6: Final answer
    x = 126,044.14

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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.