Home / 205,440.18-307,735.77-120,939.96

Finding the Fourth Proportional to 205,440.18, 307,735.77 and 120,939.96

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Solution

The fourth proportional to 205,440.18, 307,735.77 and 120,939.96 is: 181,160.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,440.18 : 307,735.77 = 120,939.96 : x
  2. Step 2: Convert to fraction form
    205,440.18/307,735.77 = 120,939.96/x
  3. Step 3: Cross multiply
    205,440.18x = 307,735.77 × 120,939.96
  4. Step 4: Simplify right side
    205,440.18x = 37,217,551,714.37
  5. Step 5: Solve for x
    x = 37,217,551,714.37/205,440.18
  6. Step 6: Final answer
    x = 181,160.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.