Home / 211,879.69-292,396.12-115,085.43

Finding the Fourth Proportional to 211,879.69, 292,396.12 and 115,085.43

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Solution

The fourth proportional to 211,879.69, 292,396.12 and 115,085.43 is: 158,819.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,879.69 : 292,396.12 = 115,085.43 : x
  2. Step 2: Convert to fraction form
    211,879.69/292,396.12 = 115,085.43/x
  3. Step 3: Cross multiply
    211,879.69x = 292,396.12 × 115,085.43
  4. Step 4: Simplify right side
    211,879.69x = 33,650,532,912.82
  5. Step 5: Solve for x
    x = 33,650,532,912.82/211,879.69
  6. Step 6: Final answer
    x = 158,819.06

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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.