Home / 117,273.98-161,778.52-74,180.86

Finding the Fourth Proportional to 117,273.98, 161,778.52 and 74,180.86

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Solution

The fourth proportional to 117,273.98, 161,778.52 and 74,180.86 is: 102,331.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,273.98 : 161,778.52 = 74,180.86 : x
  2. Step 2: Convert to fraction form
    117,273.98/161,778.52 = 74,180.86/x
  3. Step 3: Cross multiply
    117,273.98x = 161,778.52 × 74,180.86
  4. Step 4: Simplify right side
    117,273.98x = 12,000,869,924.14
  5. Step 5: Solve for x
    x = 12,000,869,924.14/117,273.98
  6. Step 6: Final answer
    x = 102,331.91

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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.