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Finding the Fourth Proportional to 159,912, 220,698 and 92,844

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Solution

The fourth proportional to 159,912, 220,698 and 92,844 is: 128,136.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,912 : 220,698 = 92,844 : x
  2. Step 2: Convert to fraction form
    159,912/220,698 = 92,844/x
  3. Step 3: Cross multiply
    159,912x = 220,698 × 92,844
  4. Step 4: Simplify right side
    159,912x = 20,490,485,112
  5. Step 5: Solve for x
    x = 20,490,485,112/159,912
  6. Step 6: Final answer
    x = 128,136.01

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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.