Home / 140,676.42-194,132.52-77,015.28

Finding the Fourth Proportional to 140,676.42, 194,132.52 and 77,015.28

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Solution

The fourth proportional to 140,676.42, 194,132.52 and 77,015.28 is: 106,280.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,676.42 : 194,132.52 = 77,015.28 : x
  2. Step 2: Convert to fraction form
    140,676.42/194,132.52 = 77,015.28/x
  3. Step 3: Cross multiply
    140,676.42x = 194,132.52 × 77,015.28
  4. Step 4: Simplify right side
    140,676.42x = 14,951,170,384.91
  5. Step 5: Solve for x
    x = 14,951,170,384.91/140,676.42
  6. Step 6: Final answer
    x = 106,280.57

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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.