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Finding the Fourth Proportional to 131,442.60, 197,163.90 and 130,060.20

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Solution

The fourth proportional to 131,442.60, 197,163.90 and 130,060.20 is: 195,090.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,442.60 : 197,163.90 = 130,060.20 : x
  2. Step 2: Convert to fraction form
    131,442.60/197,163.90 = 130,060.20/x
  3. Step 3: Cross multiply
    131,442.60x = 197,163.90 × 130,060.20
  4. Step 4: Simplify right side
    131,442.60x = 25,643,176,266.78
  5. Step 5: Solve for x
    x = 25,643,176,266.78/131,442.60
  6. Step 6: Final answer
    x = 195,090.30

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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.