Home / 211,009.61-291,198.39-115,516.01

Finding the Fourth Proportional to 211,009.61, 291,198.39 and 115,516.01

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Solution

The fourth proportional to 211,009.61, 291,198.39 and 115,516.01 is: 159,414.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,009.61 : 291,198.39 = 115,516.01 : x
  2. Step 2: Convert to fraction form
    211,009.61/291,198.39 = 115,516.01/x
  3. Step 3: Cross multiply
    211,009.61x = 291,198.39 × 115,516.01
  4. Step 4: Simplify right side
    211,009.61x = 33,638,076,131.22
  5. Step 5: Solve for x
    x = 33,638,076,131.22/211,009.61
  6. Step 6: Final answer
    x = 159,414.90

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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.