Finding the Fourth Proportional to 163,578.78, 245,370.60 and 107,776.26
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Solution
The fourth proportional to 163,578.78, 245,370.60 and 107,776.26 is: 161,665.99
Step by Step Solution
- Step 1: Write the proportion equation
163,578.78 : 245,370.60 = 107,776.26 : x - Step 2: Convert to fraction form
163,578.78/245,370.60 = 107,776.26/x - Step 3: Cross multiply
163,578.78x = 245,370.60 × 107,776.26 - Step 4: Simplify right side
163,578.78x = 26,445,125,581.96 - Step 5: Solve for x
x = 26,445,125,581.96/163,578.78 - Step 6: Final answer
x = 161,665.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.