Finding the Fourth Proportional to 106,356.69, 146,770.35 and 57,959.05
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Solution
The fourth proportional to 106,356.69, 146,770.35 and 57,959.05 is: 79,982.46
Step by Step Solution
- Step 1: Write the proportion equation
106,356.69 : 146,770.35 = 57,959.05 : x - Step 2: Convert to fraction form
106,356.69/146,770.35 = 57,959.05/x - Step 3: Cross multiply
106,356.69x = 146,770.35 × 57,959.05 - Step 4: Simplify right side
106,356.69x = 8,506,669,687.24 - Step 5: Solve for x
x = 8,506,669,687.24/106,356.69 - Step 6: Final answer
x = 79,982.46
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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.