Finding the Fourth Proportional to 157,574.40, 217,444.68 and 85,953.84
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Solution
The fourth proportional to 157,574.40, 217,444.68 and 85,953.84 is: 118,611.94
Step by Step Solution
- Step 1: Write the proportion equation
157,574.40 : 217,444.68 = 85,953.84 : x - Step 2: Convert to fraction form
157,574.40/217,444.68 = 85,953.84/x - Step 3: Cross multiply
157,574.40x = 217,444.68 × 85,953.84 - Step 4: Simplify right side
157,574.40x = 18,690,205,233.57 - Step 5: Solve for x
x = 18,690,205,233.57/157,574.40 - Step 6: Final answer
x = 118,611.94
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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.