Home / 194,416.80-291,236.40-131,431.20

Finding the Fourth Proportional to 194,416.80, 291,236.40 and 131,431.20

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Solution

The fourth proportional to 194,416.80, 291,236.40 and 131,431.20 is: 196,883.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,416.80 : 291,236.40 = 131,431.20 : x
  2. Step 2: Convert to fraction form
    194,416.80/291,236.40 = 131,431.20/x
  3. Step 3: Cross multiply
    194,416.80x = 291,236.40 × 131,431.20
  4. Step 4: Simplify right side
    194,416.80x = 38,277,549,535.68
  5. Step 5: Solve for x
    x = 38,277,549,535.68/194,416.80
  6. Step 6: Final answer
    x = 196,883.96

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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.