Home / 138,919.50-208,379.07-33,738.30

Finding the Fourth Proportional to 138,919.50, 208,379.07 and 33,738.30

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Solution

The fourth proportional to 138,919.50, 208,379.07 and 33,738.30 is: 50,607.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,919.50 : 208,379.07 = 33,738.30 : x
  2. Step 2: Convert to fraction form
    138,919.50/208,379.07 = 33,738.30/x
  3. Step 3: Cross multiply
    138,919.50x = 208,379.07 × 33,738.30
  4. Step 4: Simplify right side
    138,919.50x = 7,030,355,577.38
  5. Step 5: Solve for x
    x = 7,030,355,577.38/138,919.50
  6. Step 6: Final answer
    x = 50,607.41

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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.