Finding the Fourth Proportional to 157,134.42, 216,850.39 and 89,154.26
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Solution
The fourth proportional to 157,134.42, 216,850.39 and 89,154.26 is: 123,035.65
Step by Step Solution
- Step 1: Write the proportion equation
157,134.42 : 216,850.39 = 89,154.26 : x - Step 2: Convert to fraction form
157,134.42/216,850.39 = 89,154.26/x - Step 3: Cross multiply
157,134.42x = 216,850.39 × 89,154.26 - Step 4: Simplify right side
157,134.42x = 19,333,135,557.21 - Step 5: Solve for x
x = 19,333,135,557.21/157,134.42 - Step 6: Final answer
x = 123,035.65
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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.