Finding the Fourth Proportional to 157,161.24, 216,733.38 and 121,294.44
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Solution
The fourth proportional to 157,161.24, 216,733.38 and 121,294.44 is: 167,271.23
Step by Step Solution
- Step 1: Write the proportion equation
157,161.24 : 216,733.38 = 121,294.44 : x - Step 2: Convert to fraction form
157,161.24/216,733.38 = 121,294.44/x - Step 3: Cross multiply
157,161.24x = 216,733.38 × 121,294.44 - Step 4: Simplify right side
157,161.24x = 26,288,553,956.41 - Step 5: Solve for x
x = 26,288,553,956.41/157,161.24 - Step 6: Final answer
x = 167,271.23
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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.