Home / 131,427.27-181,383.91-80,474.36

Finding the Fourth Proportional to 131,427.27, 181,383.91 and 80,474.36

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Solution

The fourth proportional to 131,427.27, 181,383.91 and 80,474.36 is: 111,063.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,427.27 : 181,383.91 = 80,474.36 : x
  2. Step 2: Convert to fraction form
    131,427.27/181,383.91 = 80,474.36/x
  3. Step 3: Cross multiply
    131,427.27x = 181,383.91 × 80,474.36
  4. Step 4: Simplify right side
    131,427.27x = 14,596,752,963.44
  5. Step 5: Solve for x
    x = 14,596,752,963.44/131,427.27
  6. Step 6: Final answer
    x = 111,063.35

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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.