Home / 99,908.13-149,921.31-36,772.60

Finding the Fourth Proportional to 99,908.13, 149,921.31 and 36,772.60

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Solution

The fourth proportional to 99,908.13, 149,921.31 and 36,772.60 is: 55,180.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,908.13 : 149,921.31 = 36,772.60 : x
  2. Step 2: Convert to fraction form
    99,908.13/149,921.31 = 36,772.60/x
  3. Step 3: Cross multiply
    99,908.13x = 149,921.31 × 36,772.60
  4. Step 4: Simplify right side
    99,908.13x = 5,512,996,551.51
  5. Step 5: Solve for x
    x = 5,512,996,551.51/99,908.13
  6. Step 6: Final answer
    x = 55,180.66

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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.