Home / 116,974.62-161,234.55-91,435.91

Finding the Fourth Proportional to 116,974.62, 161,234.55 and 91,435.91

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Solution

The fourth proportional to 116,974.62, 161,234.55 and 91,435.91 is: 126,032.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,974.62 : 161,234.55 = 91,435.91 : x
  2. Step 2: Convert to fraction form
    116,974.62/161,234.55 = 91,435.91/x
  3. Step 3: Cross multiply
    116,974.62x = 161,234.55 × 91,435.91
  4. Step 4: Simplify right side
    116,974.62x = 14,742,626,996.52
  5. Step 5: Solve for x
    x = 14,742,626,996.52/116,974.62
  6. Step 6: Final answer
    x = 126,032.70

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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.