Finding the Fourth Proportional to 147,478.44, 203,442.66 and 99,747.84
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Solution
The fourth proportional to 147,478.44, 203,442.66 and 99,747.84 is: 137,599.54
Step by Step Solution
- Step 1: Write the proportion equation
147,478.44 : 203,442.66 = 99,747.84 : x - Step 2: Convert to fraction form
147,478.44/203,442.66 = 99,747.84/x - Step 3: Cross multiply
147,478.44x = 203,442.66 × 99,747.84 - Step 4: Simplify right side
147,478.44x = 20,292,965,898.85 - Step 5: Solve for x
x = 20,292,965,898.85/147,478.44 - Step 6: Final answer
x = 137,599.54
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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.