Home / 140,720.74-194,196.90-77,057.44

Finding the Fourth Proportional to 140,720.74, 194,196.90 and 77,057.44

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Solution

The fourth proportional to 140,720.74, 194,196.90 and 77,057.44 is: 106,340.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,720.74 : 194,196.90 = 77,057.44 : x
  2. Step 2: Convert to fraction form
    140,720.74/194,196.90 = 77,057.44/x
  3. Step 3: Cross multiply
    140,720.74x = 194,196.90 × 77,057.44
  4. Step 4: Simplify right side
    140,720.74x = 14,964,315,969.94
  5. Step 5: Solve for x
    x = 14,964,315,969.94/140,720.74
  6. Step 6: Final answer
    x = 106,340.52

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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.