Finding the Fourth Proportional to 136,701.80, 205,052.70 and 115,965.80
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Solution
The fourth proportional to 136,701.80, 205,052.70 and 115,965.80 is: 173,948.70
Step by Step Solution
- Step 1: Write the proportion equation
136,701.80 : 205,052.70 = 115,965.80 : x - Step 2: Convert to fraction form
136,701.80/205,052.70 = 115,965.80/x - Step 3: Cross multiply
136,701.80x = 205,052.70 × 115,965.80 - Step 4: Simplify right side
136,701.80x = 23,779,100,397.66 - Step 5: Solve for x
x = 23,779,100,397.66/136,701.80 - Step 6: Final answer
x = 173,948.70
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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.