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Finding the Fourth Proportional to 138,673.01, 208,009.97 and 38,833.73

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Solution

The fourth proportional to 138,673.01, 208,009.97 and 38,833.73 is: 58,250.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,673.01 : 208,009.97 = 38,833.73 : x
  2. Step 2: Convert to fraction form
    138,673.01/208,009.97 = 38,833.73/x
  3. Step 3: Cross multiply
    138,673.01x = 208,009.97 × 38,833.73
  4. Step 4: Simplify right side
    138,673.01x = 8,077,802,922.17
  5. Step 5: Solve for x
    x = 8,077,802,922.17/138,673.01
  6. Step 6: Final answer
    x = 58,250.72

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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.