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Finding the Fourth Proportional to 115,898, 159,939.24 and 62,906

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Solution

The fourth proportional to 115,898, 159,939.24 and 62,906 is: 86,810.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,898 : 159,939.24 = 62,906 : x
  2. Step 2: Convert to fraction form
    115,898/159,939.24 = 62,906/x
  3. Step 3: Cross multiply
    115,898x = 159,939.24 × 62,906
  4. Step 4: Simplify right side
    115,898x = 10,061,137,831.44
  5. Step 5: Solve for x
    x = 10,061,137,831.44/115,898
  6. Step 6: Final answer
    x = 86,810.28

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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.