Finding the Fourth Proportional to 153,677.40, 212,090.94 and 115,891.80
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Solution
The fourth proportional to 153,677.40, 212,090.94 and 115,891.80 is: 159,942.85
Step by Step Solution
- Step 1: Write the proportion equation
153,677.40 : 212,090.94 = 115,891.80 : x - Step 2: Convert to fraction form
153,677.40/212,090.94 = 115,891.80/x - Step 3: Cross multiply
153,677.40x = 212,090.94 × 115,891.80 - Step 4: Simplify right side
153,677.40x = 24,579,600,800.29 - Step 5: Solve for x
x = 24,579,600,800.29/153,677.40 - Step 6: Final answer
x = 159,942.85
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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.