Finding the Fourth Proportional to 159,397.68, 219,975.60 and 91,433.84
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Solution
The fourth proportional to 159,397.68, 219,975.60 and 91,433.84 is: 126,182.60
Step by Step Solution
- Step 1: Write the proportion equation
159,397.68 : 219,975.60 = 91,433.84 : x - Step 2: Convert to fraction form
159,397.68/219,975.60 = 91,433.84/x - Step 3: Cross multiply
159,397.68x = 219,975.60 × 91,433.84 - Step 4: Simplify right side
159,397.68x = 20,113,213,814.30 - Step 5: Solve for x
x = 20,113,213,814.30/159,397.68 - Step 6: Final answer
x = 126,182.60
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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.