Home / 202,583.52-279,564.16-111,939.36

Finding the Fourth Proportional to 202,583.52, 279,564.16 and 111,939.36

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Solution

The fourth proportional to 202,583.52, 279,564.16 and 111,939.36 is: 154,475.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,583.52 : 279,564.16 = 111,939.36 : x
  2. Step 2: Convert to fraction form
    202,583.52/279,564.16 = 111,939.36/x
  3. Step 3: Cross multiply
    202,583.52x = 279,564.16 × 111,939.36
  4. Step 4: Simplify right side
    202,583.52x = 31,294,233,149.34
  5. Step 5: Solve for x
    x = 31,294,233,149.34/202,583.52
  6. Step 6: Final answer
    x = 154,475.71

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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.