Finding the Fourth Proportional to 135,302.84, 186,737.74 and 77,930.99
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Solution
The fourth proportional to 135,302.84, 186,737.74 and 77,930.99 is: 107,556.18
Step by Step Solution
- Step 1: Write the proportion equation
135,302.84 : 186,737.74 = 77,930.99 : x - Step 2: Convert to fraction form
135,302.84/186,737.74 = 77,930.99/x - Step 3: Cross multiply
135,302.84x = 186,737.74 × 77,930.99 - Step 4: Simplify right side
135,302.84x = 14,552,656,948.56 - Step 5: Solve for x
x = 14,552,656,948.56/135,302.84 - Step 6: Final answer
x = 107,556.18
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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.