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Finding the Fourth Proportional to 138,710.08, 208,065.12 and 33,529.03

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Solution

The fourth proportional to 138,710.08, 208,065.12 and 33,529.03 is: 50,293.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,710.08 : 208,065.12 = 33,529.03 : x
  2. Step 2: Convert to fraction form
    138,710.08/208,065.12 = 33,529.03/x
  3. Step 3: Cross multiply
    138,710.08x = 208,065.12 × 33,529.03
  4. Step 4: Simplify right side
    138,710.08x = 6,976,221,650.43
  5. Step 5: Solve for x
    x = 6,976,221,650.43/138,710.08
  6. Step 6: Final answer
    x = 50,293.55

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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.