Home / 203,221.60-305,005.20-91,074.40

Finding the Fourth Proportional to 203,221.60, 305,005.20 and 91,074.40

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Solution

The fourth proportional to 203,221.60, 305,005.20 and 91,074.40 is: 136,689.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,221.60 : 305,005.20 = 91,074.40 : x
  2. Step 2: Convert to fraction form
    203,221.60/305,005.20 = 91,074.40/x
  3. Step 3: Cross multiply
    203,221.60x = 305,005.20 × 91,074.40
  4. Step 4: Simplify right side
    203,221.60x = 27,778,165,586.88
  5. Step 5: Solve for x
    x = 27,778,165,586.88/203,221.60
  6. Step 6: Final answer
    x = 136,689.04

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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.