Home / 131,900.40-197,850.60-43,156.80

Finding the Fourth Proportional to 131,900.40, 197,850.60 and 43,156.80

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Solution

The fourth proportional to 131,900.40, 197,850.60 and 43,156.80 is: 64,735.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,900.40 : 197,850.60 = 43,156.80 : x
  2. Step 2: Convert to fraction form
    131,900.40/197,850.60 = 43,156.80/x
  3. Step 3: Cross multiply
    131,900.40x = 197,850.60 × 43,156.80
  4. Step 4: Simplify right side
    131,900.40x = 8,538,598,774.08
  5. Step 5: Solve for x
    x = 8,538,598,774.08/131,900.40
  6. Step 6: Final answer
    x = 64,735.20

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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.