Home / 156,961.05-235,441.58-51,774.45

Finding the Fourth Proportional to 156,961.05, 235,441.58 and 51,774.45

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Solution

The fourth proportional to 156,961.05, 235,441.58 and 51,774.45 is: 77,661.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,961.05 : 235,441.58 = 51,774.45 : x
  2. Step 2: Convert to fraction form
    156,961.05/235,441.58 = 51,774.45/x
  3. Step 3: Cross multiply
    156,961.05x = 235,441.58 × 51,774.45
  4. Step 4: Simplify right side
    156,961.05x = 12,189,858,052.76
  5. Step 5: Solve for x
    x = 12,189,858,052.76/156,961.05
  6. Step 6: Final answer
    x = 77,661.68

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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.