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Finding the Fourth Proportional to 90,167.82, 135,197.70 and 42,794.70

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Solution

The fourth proportional to 90,167.82, 135,197.70 and 42,794.70 is: 64,166.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,167.82 : 135,197.70 = 42,794.70 : x
  2. Step 2: Convert to fraction form
    90,167.82/135,197.70 = 42,794.70/x
  3. Step 3: Cross multiply
    90,167.82x = 135,197.70 × 42,794.70
  4. Step 4: Simplify right side
    90,167.82x = 5,785,745,012.19
  5. Step 5: Solve for x
    x = 5,785,745,012.19/90,167.82
  6. Step 6: Final answer
    x = 64,166.41

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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.