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Finding the Fourth Proportional to 107,976, 149,027.04 and 63,264

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Solution

The fourth proportional to 107,976, 149,027.04 and 63,264 is: 87,316.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,976 : 149,027.04 = 63,264 : x
  2. Step 2: Convert to fraction form
    107,976/149,027.04 = 63,264/x
  3. Step 3: Cross multiply
    107,976x = 149,027.04 × 63,264
  4. Step 4: Simplify right side
    107,976x = 9,428,046,658.56
  5. Step 5: Solve for x
    x = 9,428,046,658.56/107,976
  6. Step 6: Final answer
    x = 87,316.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.