Finding the Fourth Proportional to 135,322.08, 186,922.96 and 103,879.52
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Solution
The fourth proportional to 135,322.08, 186,922.96 and 103,879.52 is: 143,490.75
Step by Step Solution
- Step 1: Write the proportion equation
135,322.08 : 186,922.96 = 103,879.52 : x - Step 2: Convert to fraction form
135,322.08/186,922.96 = 103,879.52/x - Step 3: Cross multiply
135,322.08x = 186,922.96 × 103,879.52 - Step 4: Simplify right side
135,322.08x = 19,417,467,361.78 - Step 5: Solve for x
x = 19,417,467,361.78/135,322.08 - Step 6: Final answer
x = 143,490.75
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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.