Finding the Fourth Proportional to 118,467.43, 163,485.35 and 64,753.09
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Solution
The fourth proportional to 118,467.43, 163,485.35 and 64,753.09 is: 89,359.43
Step by Step Solution
- Step 1: Write the proportion equation
118,467.43 : 163,485.35 = 64,753.09 : x - Step 2: Convert to fraction form
118,467.43/163,485.35 = 64,753.09/x - Step 3: Cross multiply
118,467.43x = 163,485.35 × 64,753.09 - Step 4: Simplify right side
118,467.43x = 10,586,181,582.23 - Step 5: Solve for x
x = 10,586,181,582.23/118,467.43 - Step 6: Final answer
x = 89,359.43
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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.