Home / 211,007.32-291,190.56-115,519.96

Finding the Fourth Proportional to 211,007.32, 291,190.56 and 115,519.96

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Solution

The fourth proportional to 211,007.32, 291,190.56 and 115,519.96 is: 159,417.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,007.32 : 291,190.56 = 115,519.96 : x
  2. Step 2: Convert to fraction form
    211,007.32/291,190.56 = 115,519.96/x
  3. Step 3: Cross multiply
    211,007.32x = 291,190.56 × 115,519.96
  4. Step 4: Simplify right side
    211,007.32x = 33,638,321,843.58
  5. Step 5: Solve for x
    x = 33,638,321,843.58/211,007.32
  6. Step 6: Final answer
    x = 159,417.80

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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.