Home / 205,129.48-307,098.32-119,479.18

Finding the Fourth Proportional to 205,129.48, 307,098.32 and 119,479.18

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Solution

The fourth proportional to 205,129.48, 307,098.32 and 119,479.18 is: 178,871.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,129.48 : 307,098.32 = 119,479.18 : x
  2. Step 2: Convert to fraction form
    205,129.48/307,098.32 = 119,479.18/x
  3. Step 3: Cross multiply
    205,129.48x = 307,098.32 × 119,479.18
  4. Step 4: Simplify right side
    205,129.48x = 36,691,855,452.98
  5. Step 5: Solve for x
    x = 36,691,855,452.98/205,129.48
  6. Step 6: Final answer
    x = 178,871.68

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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.