Home / 83,505.15-125,257.73-73,137.15

Finding the Fourth Proportional to 83,505.15, 125,257.73 and 73,137.15

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Solution

The fourth proportional to 83,505.15, 125,257.73 and 73,137.15 is: 109,705.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,505.15 : 125,257.73 = 73,137.15 : x
  2. Step 2: Convert to fraction form
    83,505.15/125,257.73 = 73,137.15/x
  3. Step 3: Cross multiply
    83,505.15x = 125,257.73 × 73,137.15
  4. Step 4: Simplify right side
    83,505.15x = 9,160,993,021.98
  5. Step 5: Solve for x
    x = 9,160,993,021.98/83,505.15
  6. Step 6: Final answer
    x = 109,705.73

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1.5x scale

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.