Finding the Fourth Proportional to 135,008.80, 202,637.04 and 68,495.20
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Solution
The fourth proportional to 135,008.80, 202,637.04 and 68,495.20 is: 102,805.63
Step by Step Solution
- Step 1: Write the proportion equation
135,008.80 : 202,637.04 = 68,495.20 : x - Step 2: Convert to fraction form
135,008.80/202,637.04 = 68,495.20/x - Step 3: Cross multiply
135,008.80x = 202,637.04 × 68,495.20 - Step 4: Simplify right side
135,008.80x = 13,879,664,582.21 - Step 5: Solve for x
x = 13,879,664,582.21/135,008.80 - Step 6: Final answer
x = 102,805.63
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.