Home / 192,684.20-289,026.30-74,359.40

Finding the Fourth Proportional to 192,684.20, 289,026.30 and 74,359.40

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Solution

The fourth proportional to 192,684.20, 289,026.30 and 74,359.40 is: 111,539.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,684.20 : 289,026.30 = 74,359.40 : x
  2. Step 2: Convert to fraction form
    192,684.20/289,026.30 = 74,359.40/x
  3. Step 3: Cross multiply
    192,684.20x = 289,026.30 × 74,359.40
  4. Step 4: Simplify right side
    192,684.20x = 21,491,822,252.22
  5. Step 5: Solve for x
    x = 21,491,822,252.22/192,684.20
  6. Step 6: Final answer
    x = 111,539.10

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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.