Finding the Fourth Proportional to 157,874.20, 236,603.94 and 74,791.96
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Solution
The fourth proportional to 157,874.20, 236,603.94 and 74,791.96 is: 112,089.70
Step by Step Solution
- Step 1: Write the proportion equation
157,874.20 : 236,603.94 = 74,791.96 : x - Step 2: Convert to fraction form
157,874.20/236,603.94 = 74,791.96/x - Step 3: Cross multiply
157,874.20x = 236,603.94 × 74,791.96 - Step 4: Simplify right side
157,874.20x = 17,696,072,416.32 - Step 5: Solve for x
x = 17,696,072,416.32/157,874.20 - Step 6: Final answer
x = 112,089.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.