Finding the Fourth Proportional to 157,772.18, 217,795.95 and 122,767.62
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Solution
The fourth proportional to 157,772.18, 217,795.95 and 122,767.62 is: 169,474.06
Step by Step Solution
- Step 1: Write the proportion equation
157,772.18 : 217,795.95 = 122,767.62 : x - Step 2: Convert to fraction form
157,772.18/217,795.95 = 122,767.62/x - Step 3: Cross multiply
157,772.18x = 217,795.95 × 122,767.62 - Step 4: Simplify right side
157,772.18x = 26,738,290,427.14 - Step 5: Solve for x
x = 26,738,290,427.14/157,772.18 - Step 6: Final answer
x = 169,474.06
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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.