Home / 139,614.44-192,734.84-85,945.46

Finding the Fourth Proportional to 139,614.44, 192,734.84 and 85,945.46

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Solution

The fourth proportional to 139,614.44, 192,734.84 and 85,945.46 is: 118,645.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,614.44 : 192,734.84 = 85,945.46 : x
  2. Step 2: Convert to fraction form
    139,614.44/192,734.84 = 85,945.46/x
  3. Step 3: Cross multiply
    139,614.44x = 192,734.84 × 85,945.46
  4. Step 4: Simplify right side
    139,614.44x = 16,564,683,733.02
  5. Step 5: Solve for x
    x = 16,564,683,733.02/139,614.44
  6. Step 6: Final answer
    x = 118,645.92

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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.