Home / 139,254.23-192,170.31-75,591.47

Finding the Fourth Proportional to 139,254.23, 192,170.31 and 75,591.47

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Solution

The fourth proportional to 139,254.23, 192,170.31 and 75,591.47 is: 104,315.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,254.23 : 192,170.31 = 75,591.47 : x
  2. Step 2: Convert to fraction form
    139,254.23/192,170.31 = 75,591.47/x
  3. Step 3: Cross multiply
    139,254.23x = 192,170.31 × 75,591.47
  4. Step 4: Simplify right side
    139,254.23x = 14,526,436,420.21
  5. Step 5: Solve for x
    x = 14,526,436,420.21/139,254.23
  6. Step 6: Final answer
    x = 104,315.94

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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.