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Finding the Fourth Proportional to 115,836, 159,853.68 and 62,844

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Solution

The fourth proportional to 115,836, 159,853.68 and 62,844 is: 86,724.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,836 : 159,853.68 = 62,844 : x
  2. Step 2: Convert to fraction form
    115,836/159,853.68 = 62,844/x
  3. Step 3: Cross multiply
    115,836x = 159,853.68 × 62,844
  4. Step 4: Simplify right side
    115,836x = 10,045,844,665.92
  5. Step 5: Solve for x
    x = 10,045,844,665.92/115,836
  6. Step 6: Final answer
    x = 86,724.72

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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.