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Finding the Fourth Proportional to 115,387, 159,234.08 and 62,395

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Solution

The fourth proportional to 115,387, 159,234.08 and 62,395 is: 86,105.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,387 : 159,234.08 = 62,395 : x
  2. Step 2: Convert to fraction form
    115,387/159,234.08 = 62,395/x
  3. Step 3: Cross multiply
    115,387x = 159,234.08 × 62,395
  4. Step 4: Simplify right side
    115,387x = 9,935,410,421.60
  5. Step 5: Solve for x
    x = 9,935,410,421.60/115,387
  6. Step 6: Final answer
    x = 86,105.11

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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.