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Finding the Fourth Proportional to 179,455.68, 269,187.84 and 85,858.56

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Solution

The fourth proportional to 179,455.68, 269,187.84 and 85,858.56 is: 128,789.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,455.68 : 269,187.84 = 85,858.56 : x
  2. Step 2: Convert to fraction form
    179,455.68/269,187.84 = 85,858.56/x
  3. Step 3: Cross multiply
    179,455.68x = 269,187.84 × 85,858.56
  4. Step 4: Simplify right side
    179,455.68x = 23,112,080,311.91
  5. Step 5: Solve for x
    x = 23,112,080,311.91/179,455.68
  6. Step 6: Final answer
    x = 128,789.91

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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.