Home / 122,308.48-168,717.36-76,969.54

Finding the Fourth Proportional to 122,308.48, 168,717.36 and 76,969.54

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Solution

The fourth proportional to 122,308.48, 168,717.36 and 76,969.54 is: 106,174.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,308.48 : 168,717.36 = 76,969.54 : x
  2. Step 2: Convert to fraction form
    122,308.48/168,717.36 = 76,969.54/x
  3. Step 3: Cross multiply
    122,308.48x = 168,717.36 × 76,969.54
  4. Step 4: Simplify right side
    122,308.48x = 12,986,097,589.21
  5. Step 5: Solve for x
    x = 12,986,097,589.21/122,308.48
  6. Step 6: Final answer
    x = 106,174.96

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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.