Home / 103,625.50-143,008.42-61,183.12

Finding the Fourth Proportional to 103,625.50, 143,008.42 and 61,183.12

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Solution

The fourth proportional to 103,625.50, 143,008.42 and 61,183.12 is: 84,435.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,625.50 : 143,008.42 = 61,183.12 : x
  2. Step 2: Convert to fraction form
    103,625.50/143,008.42 = 61,183.12/x
  3. Step 3: Cross multiply
    103,625.50x = 143,008.42 × 61,183.12
  4. Step 4: Simplify right side
    103,625.50x = 8,749,701,321.87
  5. Step 5: Solve for x
    x = 8,749,701,321.87/103,625.50
  6. Step 6: Final answer
    x = 84,435.79

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1.5x scale

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.