Home / 203,618.05-305,353.90-70,462.15

Finding the Fourth Proportional to 203,618.05, 305,353.90 and 70,462.15

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Solution

The fourth proportional to 203,618.05, 305,353.90 and 70,462.15 is: 105,667.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,618.05 : 305,353.90 = 70,462.15 : x
  2. Step 2: Convert to fraction form
    203,618.05/305,353.90 = 70,462.15/x
  3. Step 3: Cross multiply
    203,618.05x = 305,353.90 × 70,462.15
  4. Step 4: Simplify right side
    203,618.05x = 21,515,892,304.89
  5. Step 5: Solve for x
    x = 21,515,892,304.89/203,618.05
  6. Step 6: Final answer
    x = 105,667.90

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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.