Finding the Fourth Proportional to 136,607.13, 203,842.19 and 122,422.59
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Solution
The fourth proportional to 136,607.13, 203,842.19 and 122,422.59 is: 182,676.32
Step by Step Solution
- Step 1: Write the proportion equation
136,607.13 : 203,842.19 = 122,422.59 : x - Step 2: Convert to fraction form
136,607.13/203,842.19 = 122,422.59/x - Step 3: Cross multiply
136,607.13x = 203,842.19 × 122,422.59 - Step 4: Simplify right side
136,607.13x = 24,954,888,238.96 - Step 5: Solve for x
x = 24,954,888,238.96/136,607.13 - Step 6: Final answer
x = 182,676.32
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.