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Finding the Fourth Proportional to 190,960.96, 286,441.56 and 72,604.96

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Solution

The fourth proportional to 190,960.96, 286,441.56 and 72,604.96 is: 108,907.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,960.96 : 286,441.56 = 72,604.96 : x
  2. Step 2: Convert to fraction form
    190,960.96/286,441.56 = 72,604.96/x
  3. Step 3: Cross multiply
    190,960.96x = 286,441.56 × 72,604.96
  4. Step 4: Simplify right side
    190,960.96x = 20,797,078,006.14
  5. Step 5: Solve for x
    x = 20,797,078,006.14/190,960.96
  6. Step 6: Final answer
    x = 108,907.49

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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.