Home / 501,121.38-751,725.87-127,144.38

Finding the Fourth Proportional to 501,121.38, 751,725.87 and 127,144.38

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Solution

The fourth proportional to 501,121.38, 751,725.87 and 127,144.38 is: 190,727.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,121.38 : 751,725.87 = 127,144.38 : x
  2. Step 2: Convert to fraction form
    501,121.38/751,725.87 = 127,144.38/x
  3. Step 3: Cross multiply
    501,121.38x = 751,725.87 × 127,144.38
  4. Step 4: Simplify right side
    501,121.38x = 95,577,719,671.11
  5. Step 5: Solve for x
    x = 95,577,719,671.11/501,121.38
  6. Step 6: Final answer
    x = 190,727.68

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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.