Home / 138,946.72-208,377.52-50,189.28

Finding the Fourth Proportional to 138,946.72, 208,377.52 and 50,189.28

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Solution

The fourth proportional to 138,946.72, 208,377.52 and 50,189.28 is: 75,268.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,946.72 : 208,377.52 = 50,189.28 : x
  2. Step 2: Convert to fraction form
    138,946.72/208,377.52 = 50,189.28/x
  3. Step 3: Cross multiply
    138,946.72x = 208,377.52 × 50,189.28
  4. Step 4: Simplify right side
    138,946.72x = 10,458,317,696.99
  5. Step 5: Solve for x
    x = 10,458,317,696.99/138,946.72
  6. Step 6: Final answer
    x = 75,268.55

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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.