Home / 104,961.72-144,844.28-57,216

Finding the Fourth Proportional to 104,961.72, 144,844.28 and 57,216

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Solution

The fourth proportional to 104,961.72, 144,844.28 and 57,216 is: 78,956.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,961.72 : 144,844.28 = 57,216 : x
  2. Step 2: Convert to fraction form
    104,961.72/144,844.28 = 57,216/x
  3. Step 3: Cross multiply
    104,961.72x = 144,844.28 × 57,216
  4. Step 4: Simplify right side
    104,961.72x = 8,287,410,324.48
  5. Step 5: Solve for x
    x = 8,287,410,324.48/104,961.72
  6. Step 6: Final answer
    x = 78,956.50

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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.