Finding the Fourth Proportional to 98,378.22, 135,433.60 and 93,859.02
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Solution
The fourth proportional to 98,378.22, 135,433.60 and 93,859.02 is: 129,212.19
Step by Step Solution
- Step 1: Write the proportion equation
98,378.22 : 135,433.60 = 93,859.02 : x - Step 2: Convert to fraction form
98,378.22/135,433.60 = 93,859.02/x - Step 3: Cross multiply
98,378.22x = 135,433.60 × 93,859.02 - Step 4: Simplify right side
98,378.22x = 12,711,664,971.07 - Step 5: Solve for x
x = 12,711,664,971.07/98,378.22 - Step 6: Final answer
x = 129,212.19
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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.