Home / 135,380.66-203,102.12-45,435.30

Finding the Fourth Proportional to 135,380.66, 203,102.12 and 45,435.30

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Solution

The fourth proportional to 135,380.66, 203,102.12 and 45,435.30 is: 68,163.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,380.66 : 203,102.12 = 45,435.30 : x
  2. Step 2: Convert to fraction form
    135,380.66/203,102.12 = 45,435.30/x
  3. Step 3: Cross multiply
    135,380.66x = 203,102.12 × 45,435.30
  4. Step 4: Simplify right side
    135,380.66x = 9,228,005,866.42
  5. Step 5: Solve for x
    x = 9,228,005,866.42/135,380.66
  6. Step 6: Final answer
    x = 68,163.40

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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.