Home / 128,063.25-192,094.74-71,173.35

Finding the Fourth Proportional to 128,063.25, 192,094.74 and 71,173.35

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Solution

The fourth proportional to 128,063.25, 192,094.74 and 71,173.35 is: 106,759.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,063.25 : 192,094.74 = 71,173.35 : x
  2. Step 2: Convert to fraction form
    128,063.25/192,094.74 = 71,173.35/x
  3. Step 3: Cross multiply
    128,063.25x = 192,094.74 × 71,173.35
  4. Step 4: Simplify right side
    128,063.25x = 13,672,026,163.18
  5. Step 5: Solve for x
    x = 13,672,026,163.18/128,063.25
  6. Step 6: Final answer
    x = 106,759.95

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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.