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Finding the Fourth Proportional to 131,454.60, 197,181.90 and 130,072.20

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Solution

The fourth proportional to 131,454.60, 197,181.90 and 130,072.20 is: 195,108.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,454.60 : 197,181.90 = 130,072.20 : x
  2. Step 2: Convert to fraction form
    131,454.60/197,181.90 = 130,072.20/x
  3. Step 3: Cross multiply
    131,454.60x = 197,181.90 × 130,072.20
  4. Step 4: Simplify right side
    131,454.60x = 25,647,883,533.18
  5. Step 5: Solve for x
    x = 25,647,883,533.18/131,454.60
  6. Step 6: Final answer
    x = 195,108.30

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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.