Home / 139,273.80-192,136.18-82,652.38

Finding the Fourth Proportional to 139,273.80, 192,136.18 and 82,652.38

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Solution

The fourth proportional to 139,273.80, 192,136.18 and 82,652.38 is: 114,023.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,273.80 : 192,136.18 = 82,652.38 : x
  2. Step 2: Convert to fraction form
    139,273.80/192,136.18 = 82,652.38/x
  3. Step 3: Cross multiply
    139,273.80x = 192,136.18 × 82,652.38
  4. Step 4: Simplify right side
    139,273.80x = 15,880,512,561.11
  5. Step 5: Solve for x
    x = 15,880,512,561.11/139,273.80
  6. Step 6: Final answer
    x = 114,023.69

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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.