Finding the Fourth Proportional to 157,502.11, 217,344.67 and 89,509.99
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Solution
The fourth proportional to 157,502.11, 217,344.67 and 89,509.99 is: 123,519.10
Step by Step Solution
- Step 1: Write the proportion equation
157,502.11 : 217,344.67 = 89,509.99 : x - Step 2: Convert to fraction form
157,502.11/217,344.67 = 89,509.99/x - Step 3: Cross multiply
157,502.11x = 217,344.67 × 89,509.99 - Step 4: Simplify right side
157,502.11x = 19,454,519,238.25 - Step 5: Solve for x
x = 19,454,519,238.25/157,502.11 - Step 6: Final answer
x = 123,519.10
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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.