Finding the Fourth Proportional to 142,315.22, 213,029.96 and 89,613.99
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Solution
The fourth proportional to 142,315.22, 213,029.96 and 89,613.99 is: 134,142.11
Step by Step Solution
- Step 1: Write the proportion equation
142,315.22 : 213,029.96 = 89,613.99 : x - Step 2: Convert to fraction form
142,315.22/213,029.96 = 89,613.99/x - Step 3: Cross multiply
142,315.22x = 213,029.96 × 89,613.99 - Step 4: Simplify right side
142,315.22x = 19,090,463,191.92 - Step 5: Solve for x
x = 19,090,463,191.92/142,315.22 - Step 6: Final answer
x = 134,142.11
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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.