Home / 156,961.28-235,418.88-51,766.76

Finding the Fourth Proportional to 156,961.28, 235,418.88 and 51,766.76

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Solution

The fourth proportional to 156,961.28, 235,418.88 and 51,766.76 is: 77,642.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,961.28 : 235,418.88 = 51,766.76 : x
  2. Step 2: Convert to fraction form
    156,961.28/235,418.88 = 51,766.76/x
  3. Step 3: Cross multiply
    156,961.28x = 235,418.88 × 51,766.76
  4. Step 4: Simplify right side
    156,961.28x = 12,186,872,660.43
  5. Step 5: Solve for x
    x = 12,186,872,660.43/156,961.28
  6. Step 6: Final answer
    x = 77,642.54

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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.