Finding the Fourth Proportional to 141,317.19, 195,028.59 and 80,906.79
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Solution
The fourth proportional to 141,317.19, 195,028.59 and 80,906.79 is: 111,657.59
Step by Step Solution
- Step 1: Write the proportion equation
141,317.19 : 195,028.59 = 80,906.79 : x - Step 2: Convert to fraction form
141,317.19/195,028.59 = 80,906.79/x - Step 3: Cross multiply
141,317.19x = 195,028.59 × 80,906.79 - Step 4: Simplify right side
141,317.19x = 15,779,137,175.13 - Step 5: Solve for x
x = 15,779,137,175.13/141,317.19 - Step 6: Final answer
x = 111,657.59
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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.