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Finding the Fourth Proportional to 131,530.60, 197,295.90 and 89,540.20

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Solution

The fourth proportional to 131,530.60, 197,295.90 and 89,540.20 is: 134,310.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,530.60 : 197,295.90 = 89,540.20 : x
  2. Step 2: Convert to fraction form
    131,530.60/197,295.90 = 89,540.20/x
  3. Step 3: Cross multiply
    131,530.60x = 197,295.90 × 89,540.20
  4. Step 4: Simplify right side
    131,530.60x = 17,665,914,345.18
  5. Step 5: Solve for x
    x = 17,665,914,345.18/131,530.60
  6. Step 6: Final answer
    x = 134,310.30

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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.