Home / 187,879.69-259,268.61-107,305.55

Finding the Fourth Proportional to 187,879.69, 259,268.61 and 107,305.55

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Solution

The fourth proportional to 187,879.69, 259,268.61 and 107,305.55 is: 148,078.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,879.69 : 259,268.61 = 107,305.55 : x
  2. Step 2: Convert to fraction form
    187,879.69/259,268.61 = 107,305.55/x
  3. Step 3: Cross multiply
    187,879.69x = 259,268.61 × 107,305.55
  4. Step 4: Simplify right side
    187,879.69x = 27,820,960,793.79
  5. Step 5: Solve for x
    x = 27,820,960,793.79/187,879.69
  6. Step 6: Final answer
    x = 148,078.60

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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.