Home / 211,448.36-291,805.50-115,954.83

Finding the Fourth Proportional to 211,448.36, 291,805.50 and 115,954.83

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Solution

The fourth proportional to 211,448.36, 291,805.50 and 115,954.83 is: 160,021.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,448.36 : 291,805.50 = 115,954.83 : x
  2. Step 2: Convert to fraction form
    211,448.36/291,805.50 = 115,954.83/x
  3. Step 3: Cross multiply
    211,448.36x = 291,805.50 × 115,954.83
  4. Step 4: Simplify right side
    211,448.36x = 33,836,257,145.57
  5. Step 5: Solve for x
    x = 33,836,257,145.57/211,448.36
  6. Step 6: Final answer
    x = 160,021.37

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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.