Home / 422,623.60-634,039.13-123,106.96

Finding the Fourth Proportional to 422,623.60, 634,039.13 and 123,106.96

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Solution

The fourth proportional to 422,623.60, 634,039.13 and 123,106.96 is: 184,690.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,623.60 : 634,039.13 = 123,106.96 : x
  2. Step 2: Convert to fraction form
    422,623.60/634,039.13 = 123,106.96/x
  3. Step 3: Cross multiply
    422,623.60x = 634,039.13 × 123,106.96
  4. Step 4: Simplify right side
    422,623.60x = 78,054,629,815.34
  5. Step 5: Solve for x
    x = 78,054,629,815.34/422,623.60
  6. Step 6: Final answer
    x = 184,690.66

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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.