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Finding the Fourth Proportional to 115,364, 159,202.32 and 62,372

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Solution

The fourth proportional to 115,364, 159,202.32 and 62,372 is: 86,073.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,364 : 159,202.32 = 62,372 : x
  2. Step 2: Convert to fraction form
    115,364/159,202.32 = 62,372/x
  3. Step 3: Cross multiply
    115,364x = 159,202.32 × 62,372
  4. Step 4: Simplify right side
    115,364x = 9,929,767,103.04
  5. Step 5: Solve for x
    x = 9,929,767,103.04/115,364
  6. Step 6: Final answer
    x = 86,073.36

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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.