Home / 138,787.43-208,170.41-38,943.59

Finding the Fourth Proportional to 138,787.43, 208,170.41 and 38,943.59

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Solution

The fourth proportional to 138,787.43, 208,170.41 and 38,943.59 is: 58,412.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,787.43 : 208,170.41 = 38,943.59 : x
  2. Step 2: Convert to fraction form
    138,787.43/208,170.41 = 38,943.59/x
  3. Step 3: Cross multiply
    138,787.43x = 208,170.41 × 38,943.59
  4. Step 4: Simplify right side
    138,787.43x = 8,106,901,861.60
  5. Step 5: Solve for x
    x = 8,106,901,861.60/138,787.43
  6. Step 6: Final answer
    x = 58,412.37

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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.