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Finding the Fourth Proportional to 131,558.60, 197,337.90 and 120,672.20

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Solution

The fourth proportional to 131,558.60, 197,337.90 and 120,672.20 is: 181,008.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,558.60 : 197,337.90 = 120,672.20 : x
  2. Step 2: Convert to fraction form
    131,558.60/197,337.90 = 120,672.20/x
  3. Step 3: Cross multiply
    131,558.60x = 197,337.90 × 120,672.20
  4. Step 4: Simplify right side
    131,558.60x = 23,813,198,536.38
  5. Step 5: Solve for x
    x = 23,813,198,536.38/131,558.60
  6. Step 6: Final answer
    x = 181,008.30

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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.