Home / 159,404.25-219,977.87-87,784.13

Finding the Fourth Proportional to 159,404.25, 219,977.87 and 87,784.13

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Solution

The fourth proportional to 159,404.25, 219,977.87 and 87,784.13 is: 121,142.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,404.25 : 219,977.87 = 87,784.13 : x
  2. Step 2: Convert to fraction form
    159,404.25/219,977.87 = 87,784.13/x
  3. Step 3: Cross multiply
    159,404.25x = 219,977.87 × 87,784.13
  4. Step 4: Simplify right side
    159,404.25x = 19,310,564,398.39
  5. Step 5: Solve for x
    x = 19,310,564,398.39/159,404.25
  6. Step 6: Final answer
    x = 121,142.09

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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.