Finding the Fourth Proportional to 116,457.84, 160,666.20 and 71,668.08
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Solution
The fourth proportional to 116,457.84, 160,666.20 and 71,668.08 is: 98,873.88
Step by Step Solution
- Step 1: Write the proportion equation
116,457.84 : 160,666.20 = 71,668.08 : x - Step 2: Convert to fraction form
116,457.84/160,666.20 = 71,668.08/x - Step 3: Cross multiply
116,457.84x = 160,666.20 × 71,668.08 - Step 4: Simplify right side
116,457.84x = 11,514,638,074.90 - Step 5: Solve for x
x = 11,514,638,074.90/116,457.84 - Step 6: Final answer
x = 98,873.88
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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.