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Finding the Fourth Proportional to 195,772, 270,142.44 and 115,181.80

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Solution

The fourth proportional to 195,772, 270,142.44 and 115,181.80 is: 158,937.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,772 : 270,142.44 = 115,181.80 : x
  2. Step 2: Convert to fraction form
    195,772/270,142.44 = 115,181.80/x
  3. Step 3: Cross multiply
    195,772x = 270,142.44 × 115,181.80
  4. Step 4: Simplify right side
    195,772x = 31,115,492,495.59
  5. Step 5: Solve for x
    x = 31,115,492,495.59/195,772
  6. Step 6: Final answer
    x = 158,937.40

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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.