Home / 119,121.35-164,355.35-68,123.54

Finding the Fourth Proportional to 119,121.35, 164,355.35 and 68,123.54

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Solution

The fourth proportional to 119,121.35, 164,355.35 and 68,123.54 is: 93,992.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,121.35 : 164,355.35 = 68,123.54 : x
  2. Step 2: Convert to fraction form
    119,121.35/164,355.35 = 68,123.54/x
  3. Step 3: Cross multiply
    119,121.35x = 164,355.35 × 68,123.54
  4. Step 4: Simplify right side
    119,121.35x = 11,196,468,330.21
  5. Step 5: Solve for x
    x = 11,196,468,330.21/119,121.35
  6. Step 6: Final answer
    x = 93,992.12

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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.