Home / 99,904.19-149,758.88-39,914.78

Finding the Fourth Proportional to 99,904.19, 149,758.88 and 39,914.78

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Solution

The fourth proportional to 99,904.19, 149,758.88 and 39,914.78 is: 59,833.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,904.19 : 149,758.88 = 39,914.78 : x
  2. Step 2: Convert to fraction form
    99,904.19/149,758.88 = 39,914.78/x
  3. Step 3: Cross multiply
    99,904.19x = 149,758.88 × 39,914.78
  4. Step 4: Simplify right side
    99,904.19x = 5,977,591,799.88
  5. Step 5: Solve for x
    x = 5,977,591,799.88/99,904.19
  6. Step 6: Final answer
    x = 59,833.25

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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.