Home / 138,923.88-208,385.82-33,742.14

Finding the Fourth Proportional to 138,923.88, 208,385.82 and 33,742.14

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Solution

The fourth proportional to 138,923.88, 208,385.82 and 33,742.14 is: 50,613.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,923.88 : 208,385.82 = 33,742.14 : x
  2. Step 2: Convert to fraction form
    138,923.88/208,385.82 = 33,742.14/x
  3. Step 3: Cross multiply
    138,923.88x = 208,385.82 × 33,742.14
  4. Step 4: Simplify right side
    138,923.88x = 7,031,383,512.45
  5. Step 5: Solve for x
    x = 7,031,383,512.45/138,923.88
  6. Step 6: Final answer
    x = 50,613.21

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1.5x scale

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.