Home / 140,127.68-193,309.58-82,728.54

Finding the Fourth Proportional to 140,127.68, 193,309.58 and 82,728.54

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Solution

The fourth proportional to 140,127.68, 193,309.58 and 82,728.54 is: 114,126.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,127.68 : 193,309.58 = 82,728.54 : x
  2. Step 2: Convert to fraction form
    140,127.68/193,309.58 = 82,728.54/x
  3. Step 3: Cross multiply
    140,127.68x = 193,309.58 × 82,728.54
  4. Step 4: Simplify right side
    140,127.68x = 15,992,218,907.77
  5. Step 5: Solve for x
    x = 15,992,218,907.77/140,127.68
  6. Step 6: Final answer
    x = 114,126.06

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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.