Home / 131,801.66-181,930.65-80,118.58

Finding the Fourth Proportional to 131,801.66, 181,930.65 and 80,118.58

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Solution

The fourth proportional to 131,801.66, 181,930.65 and 80,118.58 is: 110,590.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,801.66 : 181,930.65 = 80,118.58 : x
  2. Step 2: Convert to fraction form
    131,801.66/181,930.65 = 80,118.58/x
  3. Step 3: Cross multiply
    131,801.66x = 181,930.65 × 80,118.58
  4. Step 4: Simplify right side
    131,801.66x = 14,576,025,336.48
  5. Step 5: Solve for x
    x = 14,576,025,336.48/131,801.66
  6. Step 6: Final answer
    x = 110,590.61

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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.