Home / 131,617.44-181,631.39-71,188.02

Finding the Fourth Proportional to 131,617.44, 181,631.39 and 71,188.02

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Solution

The fourth proportional to 131,617.44, 181,631.39 and 71,188.02 is: 98,239.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,617.44 : 181,631.39 = 71,188.02 : x
  2. Step 2: Convert to fraction form
    131,617.44/181,631.39 = 71,188.02/x
  3. Step 3: Cross multiply
    131,617.44x = 181,631.39 × 71,188.02
  4. Step 4: Simplify right side
    131,617.44x = 12,929,978,668.01
  5. Step 5: Solve for x
    x = 12,929,978,668.01/131,617.44
  6. Step 6: Final answer
    x = 98,239.10

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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.