Home / 211,010.69-291,194.78-115,517.39

Finding the Fourth Proportional to 211,010.69, 291,194.78 and 115,517.39

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Solution

The fourth proportional to 211,010.69, 291,194.78 and 115,517.39 is: 159,414.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,010.69 : 291,194.78 = 115,517.39 : x
  2. Step 2: Convert to fraction form
    211,010.69/291,194.78 = 115,517.39/x
  3. Step 3: Cross multiply
    211,010.69x = 291,194.78 × 115,517.39
  4. Step 4: Simplify right side
    211,010.69x = 33,638,058,933.66
  5. Step 5: Solve for x
    x = 33,638,058,933.66/211,010.69
  6. Step 6: Final answer
    x = 159,414.01

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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.