Finding the Fourth Proportional to 138,270.68, 207,359.88 and 54,008.99
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Solution
The fourth proportional to 138,270.68, 207,359.88 and 54,008.99 is: 80,995.46
Step by Step Solution
- Step 1: Write the proportion equation
138,270.68 : 207,359.88 = 54,008.99 : x - Step 2: Convert to fraction form
138,270.68/207,359.88 = 54,008.99/x - Step 3: Cross multiply
138,270.68x = 207,359.88 × 54,008.99 - Step 4: Simplify right side
138,270.68x = 11,199,296,648.52 - Step 5: Solve for x
x = 11,199,296,648.52/138,270.68 - Step 6: Final answer
x = 80,995.46
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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.