Home / 99,905.86-149,907.66-43,738.30

Finding the Fourth Proportional to 99,905.86, 149,907.66 and 43,738.30

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Solution

The fourth proportional to 99,905.86, 149,907.66 and 43,738.30 is: 65,628.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,905.86 : 149,907.66 = 43,738.30 : x
  2. Step 2: Convert to fraction form
    99,905.86/149,907.66 = 43,738.30/x
  3. Step 3: Cross multiply
    99,905.86x = 149,907.66 × 43,738.30
  4. Step 4: Simplify right side
    99,905.86x = 6,556,706,205.38
  5. Step 5: Solve for x
    x = 6,556,706,205.38/99,905.86
  6. Step 6: Final answer
    x = 65,628.85

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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.