Home / 121,584.69-182,441.25-86,274.18

Finding the Fourth Proportional to 121,584.69, 182,441.25 and 86,274.18

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Solution

The fourth proportional to 121,584.69, 182,441.25 and 86,274.18 is: 129,456.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,584.69 : 182,441.25 = 86,274.18 : x
  2. Step 2: Convert to fraction form
    121,584.69/182,441.25 = 86,274.18/x
  3. Step 3: Cross multiply
    121,584.69x = 182,441.25 × 86,274.18
  4. Step 4: Simplify right side
    121,584.69x = 15,739,969,241.93
  5. Step 5: Solve for x
    x = 15,739,969,241.93/121,584.69
  6. Step 6: Final answer
    x = 129,456.84

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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.