Home / 218,935.38-302,147.94-122,169.66

Finding the Fourth Proportional to 218,935.38, 302,147.94 and 122,169.66

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Solution

The fourth proportional to 218,935.38, 302,147.94 and 122,169.66 is: 168,603.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,935.38 : 302,147.94 = 122,169.66 : x
  2. Step 2: Convert to fraction form
    218,935.38/302,147.94 = 122,169.66/x
  3. Step 3: Cross multiply
    218,935.38x = 302,147.94 × 122,169.66
  4. Step 4: Simplify right side
    218,935.38x = 36,913,311,099.50
  5. Step 5: Solve for x
    x = 36,913,311,099.50/218,935.38
  6. Step 6: Final answer
    x = 168,603.68

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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.