Finding the Fourth Proportional to 135,300.84, 186,734.98 and 77,928.99
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Solution
The fourth proportional to 135,300.84, 186,734.98 and 77,928.99 is: 107,553.42
Step by Step Solution
- Step 1: Write the proportion equation
135,300.84 : 186,734.98 = 77,928.99 : x - Step 2: Convert to fraction form
135,300.84/186,734.98 = 77,928.99/x - Step 3: Cross multiply
135,300.84x = 186,734.98 × 77,928.99 - Step 4: Simplify right side
135,300.84x = 14,552,068,389.07 - Step 5: Solve for x
x = 14,552,068,389.07/135,300.84 - Step 6: Final answer
x = 107,553.42
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1.5x scale
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.