Home / 139,236.27-192,146.42-75,574.07

Finding the Fourth Proportional to 139,236.27, 192,146.42 and 75,574.07

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Solution

The fourth proportional to 139,236.27, 192,146.42 and 75,574.07 is: 104,292.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,236.27 : 192,146.42 = 75,574.07 : x
  2. Step 2: Convert to fraction form
    139,236.27/192,146.42 = 75,574.07/x
  3. Step 3: Cross multiply
    139,236.27x = 192,146.42 × 75,574.07
  4. Step 4: Simplify right side
    139,236.27x = 14,521,286,995.33
  5. Step 5: Solve for x
    x = 14,521,286,995.33/139,236.27
  6. Step 6: Final answer
    x = 104,292.42

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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.