Finding the Fourth Proportional to 188,961.99, 260,767.53 and 104,079.05
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Solution
The fourth proportional to 188,961.99, 260,767.53 and 104,079.05 is: 143,629.08
Step by Step Solution
- Step 1: Write the proportion equation
188,961.99 : 260,767.53 = 104,079.05 : x - Step 2: Convert to fraction form
188,961.99/260,767.53 = 104,079.05/x - Step 3: Cross multiply
188,961.99x = 260,767.53 × 104,079.05 - Step 4: Simplify right side
188,961.99x = 27,140,437,705.36 - Step 5: Solve for x
x = 27,140,437,705.36/188,961.99 - Step 6: Final answer
x = 143,629.08
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.