Home / 190,731.24-263,126.88-115,236

Finding the Fourth Proportional to 190,731.24, 263,126.88 and 115,236

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Solution

The fourth proportional to 190,731.24, 263,126.88 and 115,236 is: 158,976.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,731.24 : 263,126.88 = 115,236 : x
  2. Step 2: Convert to fraction form
    190,731.24/263,126.88 = 115,236/x
  3. Step 3: Cross multiply
    190,731.24x = 263,126.88 × 115,236
  4. Step 4: Simplify right side
    190,731.24x = 30,321,689,143.68
  5. Step 5: Solve for x
    x = 30,321,689,143.68/190,731.24
  6. Step 6: Final answer
    x = 158,976.00

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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.