Home / 190,896.88-263,395.92-115,443.76

Finding the Fourth Proportional to 190,896.88, 263,395.92 and 115,443.76

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Solution

The fourth proportional to 190,896.88, 263,395.92 and 115,443.76 is: 159,287.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,896.88 : 263,395.92 = 115,443.76 : x
  2. Step 2: Convert to fraction form
    190,896.88/263,395.92 = 115,443.76/x
  3. Step 3: Cross multiply
    190,896.88x = 263,395.92 × 115,443.76
  4. Step 4: Simplify right side
    190,896.88x = 30,407,415,373.46
  5. Step 5: Solve for x
    x = 30,407,415,373.46/190,896.88
  6. Step 6: Final answer
    x = 159,287.13

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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.