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Finding the Fourth Proportional to 115,869, 159,899.22 and 62,877

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Solution

The fourth proportional to 115,869, 159,899.22 and 62,877 is: 86,770.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,869 : 159,899.22 = 62,877 : x
  2. Step 2: Convert to fraction form
    115,869/159,899.22 = 62,877/x
  3. Step 3: Cross multiply
    115,869x = 159,899.22 × 62,877
  4. Step 4: Simplify right side
    115,869x = 10,053,983,255.94
  5. Step 5: Solve for x
    x = 10,053,983,255.94/115,869
  6. Step 6: Final answer
    x = 86,770.26

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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.