Home / 131,839.34-197,421.19-91,256.59

Finding the Fourth Proportional to 131,839.34, 197,421.19 and 91,256.59

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Solution

The fourth proportional to 131,839.34, 197,421.19 and 91,256.59 is: 136,651.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,839.34 : 197,421.19 = 91,256.59 : x
  2. Step 2: Convert to fraction form
    131,839.34/197,421.19 = 91,256.59/x
  3. Step 3: Cross multiply
    131,839.34x = 197,421.19 × 91,256.59
  4. Step 4: Simplify right side
    131,839.34x = 18,015,984,593.14
  5. Step 5: Solve for x
    x = 18,015,984,593.14/131,839.34
  6. Step 6: Final answer
    x = 136,651.05

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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.