Home / 192,436.31-288,666.33-74,107.76

Finding the Fourth Proportional to 192,436.31, 288,666.33 and 74,107.76

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Solution

The fourth proportional to 192,436.31, 288,666.33 and 74,107.76 is: 111,166.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,436.31 : 288,666.33 = 74,107.76 : x
  2. Step 2: Convert to fraction form
    192,436.31/288,666.33 = 74,107.76/x
  3. Step 3: Cross multiply
    192,436.31x = 288,666.33 × 74,107.76
  4. Step 4: Simplify right side
    192,436.31x = 21,392,415,423.09
  5. Step 5: Solve for x
    x = 21,392,415,423.09/192,436.31
  6. Step 6: Final answer
    x = 111,166.21

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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.