Home / 211,130.82-291,349.62-115,619.09

Finding the Fourth Proportional to 211,130.82, 291,349.62 and 115,619.09

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Solution

The fourth proportional to 211,130.82, 291,349.62 and 115,619.09 is: 159,548.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,130.82 : 291,349.62 = 115,619.09 : x
  2. Step 2: Convert to fraction form
    211,130.82/291,349.62 = 115,619.09/x
  3. Step 3: Cross multiply
    211,130.82x = 291,349.62 × 115,619.09
  4. Step 4: Simplify right side
    211,130.82x = 33,685,576,479.50
  5. Step 5: Solve for x
    x = 33,685,576,479.50/211,130.82
  6. Step 6: Final answer
    x = 159,548.36

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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.