Finding the Fourth Proportional to 133,229.48, 183,769.62 and 85,407.08
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Solution
The fourth proportional to 133,229.48, 183,769.62 and 85,407.08 is: 117,805.96
Step by Step Solution
- Step 1: Write the proportion equation
133,229.48 : 183,769.62 = 85,407.08 : x - Step 2: Convert to fraction form
133,229.48/183,769.62 = 85,407.08/x - Step 3: Cross multiply
133,229.48x = 183,769.62 × 85,407.08 - Step 4: Simplify right side
133,229.48x = 15,695,226,636.91 - Step 5: Solve for x
x = 15,695,226,636.91/133,229.48 - Step 6: Final answer
x = 117,805.96
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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.