Finding the Fourth Proportional to 157,613.28, 217,497.42 and 89,646.79
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Solution
The fourth proportional to 157,613.28, 217,497.42 and 89,646.79 is: 123,707.50
Step by Step Solution
- Step 1: Write the proportion equation
157,613.28 : 217,497.42 = 89,646.79 : x - Step 2: Convert to fraction form
157,613.28/217,497.42 = 89,646.79/x - Step 3: Cross multiply
157,613.28x = 217,497.42 × 89,646.79 - Step 4: Simplify right side
157,613.28x = 19,497,945,088.05 - Step 5: Solve for x
x = 19,497,945,088.05/157,613.28 - Step 6: Final answer
x = 123,707.50
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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.