Home / 139,236.60-192,146.73-75,574.38

Finding the Fourth Proportional to 139,236.60, 192,146.73 and 75,574.38

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Solution

The fourth proportional to 139,236.60, 192,146.73 and 75,574.38 is: 104,292.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,236.60 : 192,146.73 = 75,574.38 : x
  2. Step 2: Convert to fraction form
    139,236.60/192,146.73 = 75,574.38/x
  3. Step 3: Cross multiply
    139,236.60x = 192,146.73 × 75,574.38
  4. Step 4: Simplify right side
    139,236.60x = 14,521,369,988.78
  5. Step 5: Solve for x
    x = 14,521,369,988.78/139,236.60
  6. Step 6: Final answer
    x = 104,292.76

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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.