Home / 156,086.40-233,438.40-131,203.20

Finding the Fourth Proportional to 156,086.40, 233,438.40 and 131,203.20

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Solution

The fourth proportional to 156,086.40, 233,438.40 and 131,203.20 is: 196,223.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,086.40 : 233,438.40 = 131,203.20 : x
  2. Step 2: Convert to fraction form
    156,086.40/233,438.40 = 131,203.20/x
  3. Step 3: Cross multiply
    156,086.40x = 233,438.40 × 131,203.20
  4. Step 4: Simplify right side
    156,086.40x = 30,627,865,082.88
  5. Step 5: Solve for x
    x = 30,627,865,082.88/156,086.40
  6. Step 6: Final answer
    x = 196,223.79

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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.