Home / 99,703.12-149,498.64-33,107.60

Finding the Fourth Proportional to 99,703.12, 149,498.64 and 33,107.60

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Solution

The fourth proportional to 99,703.12, 149,498.64 and 33,107.60 is: 49,642.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,703.12 : 149,498.64 = 33,107.60 : x
  2. Step 2: Convert to fraction form
    99,703.12/149,498.64 = 33,107.60/x
  3. Step 3: Cross multiply
    99,703.12x = 149,498.64 × 33,107.60
  4. Step 4: Simplify right side
    99,703.12x = 4,949,541,173.66
  5. Step 5: Solve for x
    x = 4,949,541,173.66/99,703.12
  6. Step 6: Final answer
    x = 49,642.79

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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.