Finding the Fourth Proportional to 145,655.93, 201,008.99 and 81,996.05
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Solution
The fourth proportional to 145,655.93, 201,008.99 and 81,996.05 is: 113,156.69
Step by Step Solution
- Step 1: Write the proportion equation
145,655.93 : 201,008.99 = 81,996.05 : x - Step 2: Convert to fraction form
145,655.93/201,008.99 = 81,996.05/x - Step 3: Cross multiply
145,655.93x = 201,008.99 × 81,996.05 - Step 4: Simplify right side
145,655.93x = 16,481,943,194.49 - Step 5: Solve for x
x = 16,481,943,194.49/145,655.93 - Step 6: Final answer
x = 113,156.69
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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.