Finding the Fourth Proportional to 158,403.60, 218,618.60 and 97,138.96
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Solution
The fourth proportional to 158,403.60, 218,618.60 and 97,138.96 is: 134,065.03
Step by Step Solution
- Step 1: Write the proportion equation
158,403.60 : 218,618.60 = 97,138.96 : x - Step 2: Convert to fraction form
158,403.60/218,618.60 = 97,138.96/x - Step 3: Cross multiply
158,403.60x = 218,618.60 × 97,138.96 - Step 4: Simplify right side
158,403.60x = 21,236,383,440.66 - Step 5: Solve for x
x = 21,236,383,440.66/158,403.60 - Step 6: Final answer
x = 134,065.03
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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.