Home / 259,986.22-389,979.45-93,774.22

Finding the Fourth Proportional to 259,986.22, 389,979.45 and 93,774.22

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Solution

The fourth proportional to 259,986.22, 389,979.45 and 93,774.22 is: 140,661.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,986.22 : 389,979.45 = 93,774.22 : x
  2. Step 2: Convert to fraction form
    259,986.22/389,979.45 = 93,774.22/x
  3. Step 3: Cross multiply
    259,986.22x = 389,979.45 × 93,774.22
  4. Step 4: Simplify right side
    259,986.22x = 36,570,018,739.78
  5. Step 5: Solve for x
    x = 36,570,018,739.78/259,986.22
  6. Step 6: Final answer
    x = 140,661.37

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1.5x scale

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.