Home / 111,467.29-153,824.81-63,721.66

Finding the Fourth Proportional to 111,467.29, 153,824.81 and 63,721.66

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Solution

The fourth proportional to 111,467.29, 153,824.81 and 63,721.66 is: 87,935.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,467.29 : 153,824.81 = 63,721.66 : x
  2. Step 2: Convert to fraction form
    111,467.29/153,824.81 = 63,721.66/x
  3. Step 3: Cross multiply
    111,467.29x = 153,824.81 × 63,721.66
  4. Step 4: Simplify right side
    111,467.29x = 9,801,972,529.09
  5. Step 5: Solve for x
    x = 9,801,972,529.09/111,467.29
  6. Step 6: Final answer
    x = 87,935.87

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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.