Home / 191,171.64-263,856.78-130,864.44

Finding the Fourth Proportional to 191,171.64, 263,856.78 and 130,864.44

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Solution

The fourth proportional to 191,171.64, 263,856.78 and 130,864.44 is: 180,620.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,171.64 : 263,856.78 = 130,864.44 : x
  2. Step 2: Convert to fraction form
    191,171.64/263,856.78 = 130,864.44/x
  3. Step 3: Cross multiply
    191,171.64x = 263,856.78 × 130,864.44
  4. Step 4: Simplify right side
    191,171.64x = 34,529,469,754.90
  5. Step 5: Solve for x
    x = 34,529,469,754.90/191,171.64
  6. Step 6: Final answer
    x = 180,620.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.