Finding the Fourth Proportional to 106,724.58, 147,274.11 and 58,974.84
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Solution
The fourth proportional to 106,724.58, 147,274.11 and 58,974.84 is: 81,382.08
Step by Step Solution
- Step 1: Write the proportion equation
106,724.58 : 147,274.11 = 58,974.84 : x - Step 2: Convert to fraction form
106,724.58/147,274.11 = 58,974.84/x - Step 3: Cross multiply
106,724.58x = 147,274.11 × 58,974.84 - Step 4: Simplify right side
106,724.58x = 8,685,467,625.67 - Step 5: Solve for x
x = 8,685,467,625.67/106,724.58 - Step 6: Final answer
x = 81,382.08
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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.