Finding the Fourth Proportional to 133,035.68, 183,584.64 and 79,293.02
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Solution
The fourth proportional to 133,035.68, 183,584.64 and 79,293.02 is: 109,421.63
Step by Step Solution
- Step 1: Write the proportion equation
133,035.68 : 183,584.64 = 79,293.02 : x - Step 2: Convert to fraction form
133,035.68/183,584.64 = 79,293.02/x - Step 3: Cross multiply
133,035.68x = 183,584.64 × 79,293.02 - Step 4: Simplify right side
133,035.68x = 14,556,980,531.21 - Step 5: Solve for x
x = 14,556,980,531.21/133,035.68 - Step 6: Final answer
x = 109,421.63
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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.