Home / 138,946.80-208,418.37-33,765.47

Finding the Fourth Proportional to 138,946.80, 208,418.37 and 33,765.47

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Solution

The fourth proportional to 138,946.80, 208,418.37 and 33,765.47 is: 50,647.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,946.80 : 208,418.37 = 33,765.47 : x
  2. Step 2: Convert to fraction form
    138,946.80/208,418.37 = 33,765.47/x
  3. Step 3: Cross multiply
    138,946.80x = 208,418.37 × 33,765.47
  4. Step 4: Simplify right side
    138,946.80x = 7,037,344,219.68
  5. Step 5: Solve for x
    x = 7,037,344,219.68/138,946.80
  6. Step 6: Final answer
    x = 50,647.76

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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.