Home / 115,265.70-159,067.38-64,281.66

Finding the Fourth Proportional to 115,265.70, 159,067.38 and 64,281.66

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Solution

The fourth proportional to 115,265.70, 159,067.38 and 64,281.66 is: 88,709.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,265.70 : 159,067.38 = 64,281.66 : x
  2. Step 2: Convert to fraction form
    115,265.70/159,067.38 = 64,281.66/x
  3. Step 3: Cross multiply
    115,265.70x = 159,067.38 × 64,281.66
  4. Step 4: Simplify right side
    115,265.70x = 10,225,115,238.25
  5. Step 5: Solve for x
    x = 10,225,115,238.25/115,265.70
  6. Step 6: Final answer
    x = 88,709.09

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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.