Home / 192,901.41-289,352.15-80,520.32

Finding the Fourth Proportional to 192,901.41, 289,352.15 and 80,520.32

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Solution

The fourth proportional to 192,901.41, 289,352.15 and 80,520.32 is: 120,780.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,901.41 : 289,352.15 = 80,520.32 : x
  2. Step 2: Convert to fraction form
    192,901.41/289,352.15 = 80,520.32/x
  3. Step 3: Cross multiply
    192,901.41x = 289,352.15 × 80,520.32
  4. Step 4: Simplify right side
    192,901.41x = 23,298,727,308.09
  5. Step 5: Solve for x
    x = 23,298,727,308.09/192,901.41
  6. Step 6: Final answer
    x = 120,780.50

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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.