Home / 193,015.86-289,468.32-66,623.28

Finding the Fourth Proportional to 193,015.86, 289,468.32 and 66,623.28

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Solution

The fourth proportional to 193,015.86, 289,468.32 and 66,623.28 is: 99,915.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,015.86 : 289,468.32 = 66,623.28 : x
  2. Step 2: Convert to fraction form
    193,015.86/289,468.32 = 66,623.28/x
  3. Step 3: Cross multiply
    193,015.86x = 289,468.32 × 66,623.28
  4. Step 4: Simplify right side
    193,015.86x = 19,285,328,934.49
  5. Step 5: Solve for x
    x = 19,285,328,934.49/193,015.86
  6. Step 6: Final answer
    x = 99,915.77

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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.