Home / 251,205.50-376,865.06-82,742.72

Finding the Fourth Proportional to 251,205.50, 376,865.06 and 82,742.72

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Solution

The fourth proportional to 251,205.50, 376,865.06 and 82,742.72 is: 124,132.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,205.50 : 376,865.06 = 82,742.72 : x
  2. Step 2: Convert to fraction form
    251,205.50/376,865.06 = 82,742.72/x
  3. Step 3: Cross multiply
    251,205.50x = 376,865.06 × 82,742.72
  4. Step 4: Simplify right side
    251,205.50x = 31,182,837,839.32
  5. Step 5: Solve for x
    x = 31,182,837,839.32/251,205.50
  6. Step 6: Final answer
    x = 124,132.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.