Finding the Fourth Proportional to 135,301.84, 186,736.36 and 77,929.99
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Solution
The fourth proportional to 135,301.84, 186,736.36 and 77,929.99 is: 107,554.80
Step by Step Solution
- Step 1: Write the proportion equation
135,301.84 : 186,736.36 = 77,929.99 : x - Step 2: Convert to fraction form
135,301.84/186,736.36 = 77,929.99/x - Step 3: Cross multiply
135,301.84x = 186,736.36 × 77,929.99 - Step 4: Simplify right side
135,301.84x = 14,552,362,667.44 - Step 5: Solve for x
x = 14,552,362,667.44/135,301.84 - Step 6: Final answer
x = 107,554.80
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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.