Home / 131,287.59-196,921.80-51,310.53

Finding the Fourth Proportional to 131,287.59, 196,921.80 and 51,310.53

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Solution

The fourth proportional to 131,287.59, 196,921.80 and 51,310.53 is: 76,962.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,287.59 : 196,921.80 = 51,310.53 : x
  2. Step 2: Convert to fraction form
    131,287.59/196,921.80 = 51,310.53/x
  3. Step 3: Cross multiply
    131,287.59x = 196,921.80 × 51,310.53
  4. Step 4: Simplify right side
    131,287.59x = 10,104,161,926.55
  5. Step 5: Solve for x
    x = 10,104,161,926.55/131,287.59
  6. Step 6: Final answer
    x = 76,962.05

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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.