Home / 131,441.20-197,161.80-61,327.60

Finding the Fourth Proportional to 131,441.20, 197,161.80 and 61,327.60

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Solution

The fourth proportional to 131,441.20, 197,161.80 and 61,327.60 is: 91,991.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,441.20 : 197,161.80 = 61,327.60 : x
  2. Step 2: Convert to fraction form
    131,441.20/197,161.80 = 61,327.60/x
  3. Step 3: Cross multiply
    131,441.20x = 197,161.80 × 61,327.60
  4. Step 4: Simplify right side
    131,441.20x = 12,091,460,005.68
  5. Step 5: Solve for x
    x = 12,091,460,005.68/131,441.20
  6. Step 6: Final answer
    x = 91,991.40

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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.