Home / 215,767.76-323,789.88-104,899.28

Finding the Fourth Proportional to 215,767.76, 323,789.88 and 104,899.28

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Solution

The fourth proportional to 215,767.76, 323,789.88 and 104,899.28 is: 157,416.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,767.76 : 323,789.88 = 104,899.28 : x
  2. Step 2: Convert to fraction form
    215,767.76/323,789.88 = 104,899.28/x
  3. Step 3: Cross multiply
    215,767.76x = 323,789.88 × 104,899.28
  4. Step 4: Simplify right side
    215,767.76x = 33,965,325,283.29
  5. Step 5: Solve for x
    x = 33,965,325,283.29/215,767.76
  6. Step 6: Final answer
    x = 157,416.13

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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.