Home / 140,606.28-194,036.31-76,943.52

Finding the Fourth Proportional to 140,606.28, 194,036.31 and 76,943.52

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Solution

The fourth proportional to 140,606.28, 194,036.31 and 76,943.52 is: 106,181.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,606.28 : 194,036.31 = 76,943.52 : x
  2. Step 2: Convert to fraction form
    140,606.28/194,036.31 = 76,943.52/x
  3. Step 3: Cross multiply
    140,606.28x = 194,036.31 × 76,943.52
  4. Step 4: Simplify right side
    140,606.28x = 14,929,836,699.21
  5. Step 5: Solve for x
    x = 14,929,836,699.21/140,606.28
  6. Step 6: Final answer
    x = 106,181.86

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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.