Home / 123,768.36-185,514.30-113,804.28

Finding the Fourth Proportional to 123,768.36, 185,514.30 and 113,804.28

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Solution

The fourth proportional to 123,768.36, 185,514.30 and 113,804.28 is: 170,579.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,768.36 : 185,514.30 = 113,804.28 : x
  2. Step 2: Convert to fraction form
    123,768.36/185,514.30 = 113,804.28/x
  3. Step 3: Cross multiply
    123,768.36x = 185,514.30 × 113,804.28
  4. Step 4: Simplify right side
    123,768.36x = 21,112,321,341.20
  5. Step 5: Solve for x
    x = 21,112,321,341.20/123,768.36
  6. Step 6: Final answer
    x = 170,579.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.