Home / 136,215.20-204,476.40-80,842.40

Finding the Fourth Proportional to 136,215.20, 204,476.40 and 80,842.40

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Solution

The fourth proportional to 136,215.20, 204,476.40 and 80,842.40 is: 121,354.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,215.20 : 204,476.40 = 80,842.40 : x
  2. Step 2: Convert to fraction form
    136,215.20/204,476.40 = 80,842.40/x
  3. Step 3: Cross multiply
    136,215.20x = 204,476.40 × 80,842.40
  4. Step 4: Simplify right side
    136,215.20x = 16,530,362,919.36
  5. Step 5: Solve for x
    x = 16,530,362,919.36/136,215.20
  6. Step 6: Final answer
    x = 121,354.76

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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.