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Finding the Fourth Proportional to 99,071.88, 148,606.08 and 39,906.03

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Solution

The fourth proportional to 99,071.88, 148,606.08 and 39,906.03 is: 59,858.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,071.88 : 148,606.08 = 39,906.03 : x
  2. Step 2: Convert to fraction form
    99,071.88/148,606.08 = 39,906.03/x
  3. Step 3: Cross multiply
    99,071.88x = 148,606.08 × 39,906.03
  4. Step 4: Simplify right side
    99,071.88x = 5,930,278,686.66
  5. Step 5: Solve for x
    x = 5,930,278,686.66/99,071.88
  6. Step 6: Final answer
    x = 59,858.34

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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.