Finding the Fourth Proportional to 136,521.74, 204,768.06 and 47,776.94
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Solution
The fourth proportional to 136,521.74, 204,768.06 and 47,776.94 is: 71,660.32
Step by Step Solution
- Step 1: Write the proportion equation
136,521.74 : 204,768.06 = 47,776.94 : x - Step 2: Convert to fraction form
136,521.74/204,768.06 = 47,776.94/x - Step 3: Cross multiply
136,521.74x = 204,768.06 × 47,776.94 - Step 4: Simplify right side
136,521.74x = 9,783,191,316.54 - Step 5: Solve for x
x = 9,783,191,316.54/136,521.74 - Step 6: Final answer
x = 71,660.32
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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.