Finding the Fourth Proportional to 157,336.79, 217,067.81 and 102,920.02
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Solution
The fourth proportional to 157,336.79, 217,067.81 and 102,920.02 is: 141,992.37
Step by Step Solution
- Step 1: Write the proportion equation
157,336.79 : 217,067.81 = 102,920.02 : x - Step 2: Convert to fraction form
157,336.79/217,067.81 = 102,920.02/x - Step 3: Cross multiply
157,336.79x = 217,067.81 × 102,920.02 - Step 4: Simplify right side
157,336.79x = 22,340,622,261.22 - Step 5: Solve for x
x = 22,340,622,261.22/157,336.79 - Step 6: Final answer
x = 141,992.37
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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.