Finding the Fourth Proportional to 154,779.69, 213,505.48 and 97,328.09
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Solution
The fourth proportional to 154,779.69, 213,505.48 and 97,328.09 is: 134,255.86
Step by Step Solution
- Step 1: Write the proportion equation
154,779.69 : 213,505.48 = 97,328.09 : x - Step 2: Convert to fraction form
154,779.69/213,505.48 = 97,328.09/x - Step 3: Cross multiply
154,779.69x = 213,505.48 × 97,328.09 - Step 4: Simplify right side
154,779.69x = 20,780,080,572.93 - Step 5: Solve for x
x = 20,780,080,572.93/154,779.69 - Step 6: Final answer
x = 134,255.86
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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.