Home / 98,150.94-135,375.03-66,286.62

Finding the Fourth Proportional to 98,150.94, 135,375.03 and 66,286.62

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Solution

The fourth proportional to 98,150.94, 135,375.03 and 66,286.62 is: 91,426.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,150.94 : 135,375.03 = 66,286.62 : x
  2. Step 2: Convert to fraction form
    98,150.94/135,375.03 = 66,286.62/x
  3. Step 3: Cross multiply
    98,150.94x = 135,375.03 × 66,286.62
  4. Step 4: Simplify right side
    98,150.94x = 8,973,553,171.10
  5. Step 5: Solve for x
    x = 8,973,553,171.10/98,150.94
  6. Step 6: Final answer
    x = 91,426.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.