Home / 90,924.60-135,773.43-74,318.04

Finding the Fourth Proportional to 90,924.60, 135,773.43 and 74,318.04

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Solution

The fourth proportional to 90,924.60, 135,773.43 and 74,318.04 is: 110,975.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,924.60 : 135,773.43 = 74,318.04 : x
  2. Step 2: Convert to fraction form
    90,924.60/135,773.43 = 74,318.04/x
  3. Step 3: Cross multiply
    90,924.60x = 135,773.43 × 74,318.04
  4. Step 4: Simplify right side
    90,924.60x = 10,090,415,201.68
  5. Step 5: Solve for x
    x = 10,090,415,201.68/90,924.60
  6. Step 6: Final answer
    x = 110,975.63

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.