Home / 109,516.40-151,067.40-69,158.96

Finding the Fourth Proportional to 109,516.40, 151,067.40 and 69,158.96

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Solution

The fourth proportional to 109,516.40, 151,067.40 and 69,158.96 is: 95,398.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,516.40 : 151,067.40 = 69,158.96 : x
  2. Step 2: Convert to fraction form
    109,516.40/151,067.40 = 69,158.96/x
  3. Step 3: Cross multiply
    109,516.40x = 151,067.40 × 69,158.96
  4. Step 4: Simplify right side
    109,516.40x = 10,447,664,273.90
  5. Step 5: Solve for x
    x = 10,447,664,273.90/109,516.40
  6. Step 6: Final answer
    x = 95,398.17

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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.