Home / 135,904.20-203,856.30-130,145.10

Finding the Fourth Proportional to 135,904.20, 203,856.30 and 130,145.10

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Solution

The fourth proportional to 135,904.20, 203,856.30 and 130,145.10 is: 195,217.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,904.20 : 203,856.30 = 130,145.10 : x
  2. Step 2: Convert to fraction form
    135,904.20/203,856.30 = 130,145.10/x
  3. Step 3: Cross multiply
    135,904.20x = 203,856.30 × 130,145.10
  4. Step 4: Simplify right side
    135,904.20x = 26,530,898,549.13
  5. Step 5: Solve for x
    x = 26,530,898,549.13/135,904.20
  6. Step 6: Final answer
    x = 195,217.65

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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.