Finding the Fourth Proportional to 147,111.87, 202,377.32 and 128,880.49
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Solution
The fourth proportional to 147,111.87, 202,377.32 and 128,880.49 is: 177,296.97
Step by Step Solution
- Step 1: Write the proportion equation
147,111.87 : 202,377.32 = 128,880.49 : x - Step 2: Convert to fraction form
147,111.87/202,377.32 = 128,880.49/x - Step 3: Cross multiply
147,111.87x = 202,377.32 × 128,880.49 - Step 4: Simplify right side
147,111.87x = 26,082,488,166.49 - Step 5: Solve for x
x = 26,082,488,166.49/147,111.87 - Step 6: Final answer
x = 177,296.97
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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.