Home / 116,868.12-161,282.75-65,882.77

Finding the Fourth Proportional to 116,868.12, 161,282.75 and 65,882.77

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Solution

The fourth proportional to 116,868.12, 161,282.75 and 65,882.77 is: 90,920.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,868.12 : 161,282.75 = 65,882.77 : x
  2. Step 2: Convert to fraction form
    116,868.12/161,282.75 = 65,882.77/x
  3. Step 3: Cross multiply
    116,868.12x = 161,282.75 × 65,882.77
  4. Step 4: Simplify right side
    116,868.12x = 10,625,753,590.60
  5. Step 5: Solve for x
    x = 10,625,753,590.60/116,868.12
  6. Step 6: Final answer
    x = 90,920.89

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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.