Finding the Fourth Proportional to 112,029.40, 154,599.87 and 61,045.12
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Solution
The fourth proportional to 112,029.40, 154,599.87 and 61,045.12 is: 84,241.88
Step by Step Solution
- Step 1: Write the proportion equation
112,029.40 : 154,599.87 = 61,045.12 : x - Step 2: Convert to fraction form
112,029.40/154,599.87 = 61,045.12/x - Step 3: Cross multiply
112,029.40x = 154,599.87 × 61,045.12 - Step 4: Simplify right side
112,029.40x = 9,437,567,616.13 - Step 5: Solve for x
x = 9,437,567,616.13/112,029.40 - Step 6: Final answer
x = 84,241.88
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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.