Finding the Fourth Proportional to 113,712.72, 157,132.08 and 108,250.08
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Solution
The fourth proportional to 113,712.72, 157,132.08 and 108,250.08 is: 149,583.62
Step by Step Solution
- Step 1: Write the proportion equation
113,712.72 : 157,132.08 = 108,250.08 : x - Step 2: Convert to fraction form
113,712.72/157,132.08 = 108,250.08/x - Step 3: Cross multiply
113,712.72x = 157,132.08 × 108,250.08 - Step 4: Simplify right side
113,712.72x = 17,009,560,230.57 - Step 5: Solve for x
x = 17,009,560,230.57/113,712.72 - Step 6: Final answer
x = 149,583.62
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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.