Home / 140,605.52-194,035.62-76,943.32

Finding the Fourth Proportional to 140,605.52, 194,035.62 and 76,943.32

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Solution

The fourth proportional to 140,605.52, 194,035.62 and 76,943.32 is: 106,181.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,605.52 : 194,035.62 = 76,943.32 : x
  2. Step 2: Convert to fraction form
    140,605.52/194,035.62 = 76,943.32/x
  3. Step 3: Cross multiply
    140,605.52x = 194,035.62 × 76,943.32
  4. Step 4: Simplify right side
    140,605.52x = 14,929,744,801.06
  5. Step 5: Solve for x
    x = 14,929,744,801.06/140,605.52
  6. Step 6: Final answer
    x = 106,181.78

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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.