Finding the Fourth Proportional to 135,309.23, 186,511.63 and 106,583.39
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Solution
The fourth proportional to 135,309.23, 186,511.63 and 106,583.39 is: 146,915.63
Step by Step Solution
- Step 1: Write the proportion equation
135,309.23 : 186,511.63 = 106,583.39 : x - Step 2: Convert to fraction form
135,309.23/186,511.63 = 106,583.39/x - Step 3: Cross multiply
135,309.23x = 186,511.63 × 106,583.39 - Step 4: Simplify right side
135,309.23x = 19,879,041,593.75 - Step 5: Solve for x
x = 19,879,041,593.75/135,309.23 - Step 6: Final answer
x = 146,915.63
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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.