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Finding the Fourth Proportional to 115,247, 159,040.86 and 62,255

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Solution

The fourth proportional to 115,247, 159,040.86 and 62,255 is: 85,911.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,247 : 159,040.86 = 62,255 : x
  2. Step 2: Convert to fraction form
    115,247/159,040.86 = 62,255/x
  3. Step 3: Cross multiply
    115,247x = 159,040.86 × 62,255
  4. Step 4: Simplify right side
    115,247x = 9,901,088,739.30
  5. Step 5: Solve for x
    x = 9,901,088,739.30/115,247
  6. Step 6: Final answer
    x = 85,911.90

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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.