Home / 140,893.76-194,434.24-77,231.36

Finding the Fourth Proportional to 140,893.76, 194,434.24 and 77,231.36

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Solution

The fourth proportional to 140,893.76, 194,434.24 and 77,231.36 is: 106,579.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,893.76 : 194,434.24 = 77,231.36 : x
  2. Step 2: Convert to fraction form
    140,893.76/194,434.24 = 77,231.36/x
  3. Step 3: Cross multiply
    140,893.76x = 194,434.24 × 77,231.36
  4. Step 4: Simplify right side
    140,893.76x = 15,016,420,785.77
  5. Step 5: Solve for x
    x = 15,016,420,785.77/140,893.76
  6. Step 6: Final answer
    x = 106,579.74

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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.