Finding the Fourth Proportional to 142,316.22, 213,031.45 and 89,614.99
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Solution
The fourth proportional to 142,316.22, 213,031.45 and 89,614.99 is: 134,143.61
Step by Step Solution
- Step 1: Write the proportion equation
142,316.22 : 213,031.45 = 89,614.99 : x - Step 2: Convert to fraction form
142,316.22/213,031.45 = 89,614.99/x - Step 3: Cross multiply
142,316.22x = 213,031.45 × 89,614.99 - Step 4: Simplify right side
142,316.22x = 19,090,811,261.44 - Step 5: Solve for x
x = 19,090,811,261.44/142,316.22 - Step 6: Final answer
x = 134,143.61
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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.