Home / 199,936.32-275,942.40-115,047.68

Finding the Fourth Proportional to 199,936.32, 275,942.40 and 115,047.68

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Solution

The fourth proportional to 199,936.32, 275,942.40 and 115,047.68 is: 158,783.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,936.32 : 275,942.40 = 115,047.68 : x
  2. Step 2: Convert to fraction form
    199,936.32/275,942.40 = 115,047.68/x
  3. Step 3: Cross multiply
    199,936.32x = 275,942.40 × 115,047.68
  4. Step 4: Simplify right side
    199,936.32x = 31,746,532,933.63
  5. Step 5: Solve for x
    x = 31,746,532,933.63/199,936.32
  6. Step 6: Final answer
    x = 158,783.22

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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.