Finding the Fourth Proportional to 107,451.23, 148,242.42 and 66,596.68
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Solution
The fourth proportional to 107,451.23, 148,242.42 and 66,596.68 is: 91,878.46
Step by Step Solution
- Step 1: Write the proportion equation
107,451.23 : 148,242.42 = 66,596.68 : x - Step 2: Convert to fraction form
107,451.23/148,242.42 = 66,596.68/x - Step 3: Cross multiply
107,451.23x = 148,242.42 × 66,596.68 - Step 4: Simplify right side
107,451.23x = 9,872,453,192.47 - Step 5: Solve for x
x = 9,872,453,192.47/107,451.23 - Step 6: Final answer
x = 91,878.46
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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.