Home / 139,201.85-192,099.06-75,539.63

Finding the Fourth Proportional to 139,201.85, 192,099.06 and 75,539.63

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Solution

The fourth proportional to 139,201.85, 192,099.06 and 75,539.63 is: 104,244.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,201.85 : 192,099.06 = 75,539.63 : x
  2. Step 2: Convert to fraction form
    139,201.85/192,099.06 = 75,539.63/x
  3. Step 3: Cross multiply
    139,201.85x = 192,099.06 × 75,539.63
  4. Step 4: Simplify right side
    139,201.85x = 14,511,092,396.00
  5. Step 5: Solve for x
    x = 14,511,092,396.00/139,201.85
  6. Step 6: Final answer
    x = 104,244.97

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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.