Finding the Fourth Proportional to 157,560.05, 236,142.97 and 78,696.29
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Solution
The fourth proportional to 157,560.05, 236,142.97 and 78,696.29 is: 117,945.99
Step by Step Solution
- Step 1: Write the proportion equation
157,560.05 : 236,142.97 = 78,696.29 : x - Step 2: Convert to fraction form
157,560.05/236,142.97 = 78,696.29/x - Step 3: Cross multiply
157,560.05x = 236,142.97 × 78,696.29 - Step 4: Simplify right side
157,560.05x = 18,583,575,648.58 - Step 5: Solve for x
x = 18,583,575,648.58/157,560.05 - Step 6: Final answer
x = 117,945.99
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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.