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Finding the Fourth Proportional to 115,873, 159,904.74 and 62,881

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Solution

The fourth proportional to 115,873, 159,904.74 and 62,881 is: 86,775.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,873 : 159,904.74 = 62,881 : x
  2. Step 2: Convert to fraction form
    115,873/159,904.74 = 62,881/x
  3. Step 3: Cross multiply
    115,873x = 159,904.74 × 62,881
  4. Step 4: Simplify right side
    115,873x = 10,054,969,955.94
  5. Step 5: Solve for x
    x = 10,054,969,955.94/115,873
  6. Step 6: Final answer
    x = 86,775.78

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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.