Home / 219,739.60-329,609.40-131,093.20

Finding the Fourth Proportional to 219,739.60, 329,609.40 and 131,093.20

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Solution

The fourth proportional to 219,739.60, 329,609.40 and 131,093.20 is: 196,639.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,739.60 : 329,609.40 = 131,093.20 : x
  2. Step 2: Convert to fraction form
    219,739.60/329,609.40 = 131,093.20/x
  3. Step 3: Cross multiply
    219,739.60x = 329,609.40 × 131,093.20
  4. Step 4: Simplify right side
    219,739.60x = 43,209,550,996.08
  5. Step 5: Solve for x
    x = 43,209,550,996.08/219,739.60
  6. Step 6: Final answer
    x = 196,639.80

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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.