Home / 103,675.33-155,513-33,561.73

Finding the Fourth Proportional to 103,675.33, 155,513 and 33,561.73

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Solution

The fourth proportional to 103,675.33, 155,513 and 33,561.73 is: 50,342.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,675.33 : 155,513 = 33,561.73 : x
  2. Step 2: Convert to fraction form
    103,675.33/155,513 = 33,561.73/x
  3. Step 3: Cross multiply
    103,675.33x = 155,513 × 33,561.73
  4. Step 4: Simplify right side
    103,675.33x = 5,219,285,317.49
  5. Step 5: Solve for x
    x = 5,219,285,317.49/103,675.33
  6. Step 6: Final answer
    x = 50,342.60

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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.