Home / 109,105.13-150,564.09-61,358.82

Finding the Fourth Proportional to 109,105.13, 150,564.09 and 61,358.82

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Solution

The fourth proportional to 109,105.13, 150,564.09 and 61,358.82 is: 84,674.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,105.13 : 150,564.09 = 61,358.82 : x
  2. Step 2: Convert to fraction form
    109,105.13/150,564.09 = 61,358.82/x
  3. Step 3: Cross multiply
    109,105.13x = 150,564.09 × 61,358.82
  4. Step 4: Simplify right side
    109,105.13x = 9,238,434,389.68
  5. Step 5: Solve for x
    x = 9,238,434,389.68/109,105.13
  6. Step 6: Final answer
    x = 84,674.61

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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.