Home / 192,964.78-266,291.40-117,513.28

Finding the Fourth Proportional to 192,964.78, 266,291.40 and 117,513.28

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Solution

The fourth proportional to 192,964.78, 266,291.40 and 117,513.28 is: 162,168.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,964.78 : 266,291.40 = 117,513.28 : x
  2. Step 2: Convert to fraction form
    192,964.78/266,291.40 = 117,513.28/x
  3. Step 3: Cross multiply
    192,964.78x = 266,291.40 × 117,513.28
  4. Step 4: Simplify right side
    192,964.78x = 31,292,775,962.32
  5. Step 5: Solve for x
    x = 31,292,775,962.32/192,964.78
  6. Step 6: Final answer
    x = 162,168.33

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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.