Finding the Fourth Proportional to 146,646.74, 202,372.49 and 79,578.74
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Solution
The fourth proportional to 146,646.74, 202,372.49 and 79,578.74 is: 109,818.65
Step by Step Solution
- Step 1: Write the proportion equation
146,646.74 : 202,372.49 = 79,578.74 : x - Step 2: Convert to fraction form
146,646.74/202,372.49 = 79,578.74/x - Step 3: Cross multiply
146,646.74x = 202,372.49 × 79,578.74 - Step 4: Simplify right side
146,646.74x = 16,104,546,355.11 - Step 5: Solve for x
x = 16,104,546,355.11/146,646.74 - Step 6: Final answer
x = 109,818.65
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1.5x scale
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.