Home / 138,787.30-208,053.37-50,019.09

Finding the Fourth Proportional to 138,787.30, 208,053.37 and 50,019.09

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Solution

The fourth proportional to 138,787.30, 208,053.37 and 50,019.09 is: 74,982.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,787.30 : 208,053.37 = 50,019.09 : x
  2. Step 2: Convert to fraction form
    138,787.30/208,053.37 = 50,019.09/x
  3. Step 3: Cross multiply
    138,787.30x = 208,053.37 × 50,019.09
  4. Step 4: Simplify right side
    138,787.30x = 10,406,640,238.83
  5. Step 5: Solve for x
    x = 10,406,640,238.83/138,787.30
  6. Step 6: Final answer
    x = 74,982.66

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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.