Finding the Fourth Proportional to 157,305.18, 217,084.44 and 85,685.02
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Solution
The fourth proportional to 157,305.18, 217,084.44 and 85,685.02 is: 118,247.12
Step by Step Solution
- Step 1: Write the proportion equation
157,305.18 : 217,084.44 = 85,685.02 : x - Step 2: Convert to fraction form
157,305.18/217,084.44 = 85,685.02/x - Step 3: Cross multiply
157,305.18x = 217,084.44 × 85,685.02 - Step 4: Simplify right side
157,305.18x = 18,600,884,583.09 - Step 5: Solve for x
x = 18,600,884,583.09/157,305.18 - Step 6: Final answer
x = 118,247.12
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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.