Home / 211,112.65-291,324.66-115,600.90

Finding the Fourth Proportional to 211,112.65, 291,324.66 and 115,600.90

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Solution

The fourth proportional to 211,112.65, 291,324.66 and 115,600.90 is: 159,523.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,112.65 : 291,324.66 = 115,600.90 : x
  2. Step 2: Convert to fraction form
    211,112.65/291,324.66 = 115,600.90/x
  3. Step 3: Cross multiply
    211,112.65x = 291,324.66 × 115,600.90
  4. Step 4: Simplify right side
    211,112.65x = 33,677,392,888.19
  5. Step 5: Solve for x
    x = 33,677,392,888.19/211,112.65
  6. Step 6: Final answer
    x = 159,523.33

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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.