Home / 111,919.18-167,935.05-69,788.38

Finding the Fourth Proportional to 111,919.18, 167,935.05 and 69,788.38

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Solution

The fourth proportional to 111,919.18, 167,935.05 and 69,788.38 is: 104,717.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,919.18 : 167,935.05 = 69,788.38 : x
  2. Step 2: Convert to fraction form
    111,919.18/167,935.05 = 69,788.38/x
  3. Step 3: Cross multiply
    111,919.18x = 167,935.05 × 69,788.38
  4. Step 4: Simplify right side
    111,919.18x = 11,719,915,084.72
  5. Step 5: Solve for x
    x = 11,719,915,084.72/111,919.18
  6. Step 6: Final answer
    x = 104,717.66

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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.