Finding the Fourth Proportional to 157,409.93, 217,226.41 and 89,430.62
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Solution
The fourth proportional to 157,409.93, 217,226.41 and 89,430.62 is: 123,414.65
Step by Step Solution
- Step 1: Write the proportion equation
157,409.93 : 217,226.41 = 89,430.62 : x - Step 2: Convert to fraction form
157,409.93/217,226.41 = 89,430.62/x - Step 3: Cross multiply
157,409.93x = 217,226.41 × 89,430.62 - Step 4: Simplify right side
157,409.93x = 19,426,691,216.97 - Step 5: Solve for x
x = 19,426,691,216.97/157,409.93 - Step 6: Final answer
x = 123,414.65
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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.