Home / 99,761.05-149,448.61-83,558.22

Finding the Fourth Proportional to 99,761.05, 149,448.61 and 83,558.22

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Solution

The fourth proportional to 99,761.05, 149,448.61 and 83,558.22 is: 125,175.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,761.05 : 149,448.61 = 83,558.22 : x
  2. Step 2: Convert to fraction form
    99,761.05/149,448.61 = 83,558.22/x
  3. Step 3: Cross multiply
    99,761.05x = 149,448.61 × 83,558.22
  4. Step 4: Simplify right side
    99,761.05x = 12,487,659,833.07
  5. Step 5: Solve for x
    x = 12,487,659,833.07/99,761.05
  6. Step 6: Final answer
    x = 125,175.71

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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.