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Finding the Fourth Proportional to 138,937.93, 208,406.28 and 33,757.20

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Solution

The fourth proportional to 138,937.93, 208,406.28 and 33,757.20 is: 50,635.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,937.93 : 208,406.28 = 33,757.20 : x
  2. Step 2: Convert to fraction form
    138,937.93/208,406.28 = 33,757.20/x
  3. Step 3: Cross multiply
    138,937.93x = 208,406.28 × 33,757.20
  4. Step 4: Simplify right side
    138,937.93x = 7,035,212,475.22
  5. Step 5: Solve for x
    x = 7,035,212,475.22/138,937.93
  6. Step 6: Final answer
    x = 50,635.65

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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.