Home / 131,719.53-181,771.38-71,288.73

Finding the Fourth Proportional to 131,719.53, 181,771.38 and 71,288.73

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Solution

The fourth proportional to 131,719.53, 181,771.38 and 71,288.73 is: 98,377.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,719.53 : 181,771.38 = 71,288.73 : x
  2. Step 2: Convert to fraction form
    131,719.53/181,771.38 = 71,288.73/x
  3. Step 3: Cross multiply
    131,719.53x = 181,771.38 × 71,288.73
  4. Step 4: Simplify right side
    131,719.53x = 12,958,250,830.55
  5. Step 5: Solve for x
    x = 12,958,250,830.55/131,719.53
  6. Step 6: Final answer
    x = 98,377.60

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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.