Finding the Fourth Proportional to 105,296.08, 145,305.18 and 66,554.68
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Solution
The fourth proportional to 105,296.08, 145,305.18 and 66,554.68 is: 91,843.30
Step by Step Solution
- Step 1: Write the proportion equation
105,296.08 : 145,305.18 = 66,554.68 : x - Step 2: Convert to fraction form
105,296.08/145,305.18 = 66,554.68/x - Step 3: Cross multiply
105,296.08x = 145,305.18 × 66,554.68 - Step 4: Simplify right side
105,296.08x = 9,670,739,757.24 - Step 5: Solve for x
x = 9,670,739,757.24/105,296.08 - Step 6: Final answer
x = 91,843.30
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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.