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Finding the Fourth Proportional to 115,231, 159,018.80 and 62,239

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Solution

The fourth proportional to 115,231, 159,018.80 and 62,239 is: 85,889.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,231 : 159,018.80 = 62,239 : x
  2. Step 2: Convert to fraction form
    115,231/159,018.80 = 62,239/x
  3. Step 3: Cross multiply
    115,231x = 159,018.80 × 62,239
  4. Step 4: Simplify right side
    115,231x = 9,897,171,093.20
  5. Step 5: Solve for x
    x = 9,897,171,093.20/115,231
  6. Step 6: Final answer
    x = 85,889.83

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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.