Home / 192,039.20-288,058.80-121,180.40

Finding the Fourth Proportional to 192,039.20, 288,058.80 and 121,180.40

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Solution

The fourth proportional to 192,039.20, 288,058.80 and 121,180.40 is: 181,770.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,039.20 : 288,058.80 = 121,180.40 : x
  2. Step 2: Convert to fraction form
    192,039.20/288,058.80 = 121,180.40/x
  3. Step 3: Cross multiply
    192,039.20x = 288,058.80 × 121,180.40
  4. Step 4: Simplify right side
    192,039.20x = 34,907,080,607.52
  5. Step 5: Solve for x
    x = 34,907,080,607.52/192,039.20
  6. Step 6: Final answer
    x = 181,770.60

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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.