Home / 85,110.87-117,393.26-73,760.43

Finding the Fourth Proportional to 85,110.87, 117,393.26 and 73,760.43

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Solution

The fourth proportional to 85,110.87, 117,393.26 and 73,760.43 is: 101,737.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,110.87 : 117,393.26 = 73,760.43 : x
  2. Step 2: Convert to fraction form
    85,110.87/117,393.26 = 73,760.43/x
  3. Step 3: Cross multiply
    85,110.87x = 117,393.26 × 73,760.43
  4. Step 4: Simplify right side
    85,110.87x = 8,658,976,967.90
  5. Step 5: Solve for x
    x = 8,658,976,967.90/85,110.87
  6. Step 6: Final answer
    x = 101,737.62

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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.