Finding the Fourth Proportional to 163,869.18, 245,837.49 and 69,099.63
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Solution
The fourth proportional to 163,869.18, 245,837.49 and 69,099.63 is: 103,663.66
Step by Step Solution
- Step 1: Write the proportion equation
163,869.18 : 245,837.49 = 69,099.63 : x - Step 2: Convert to fraction form
163,869.18/245,837.49 = 69,099.63/x - Step 3: Cross multiply
163,869.18x = 245,837.49 × 69,099.63 - Step 4: Simplify right side
163,869.18x = 16,987,279,599.13 - Step 5: Solve for x
x = 16,987,279,599.13/163,869.18 - Step 6: Final answer
x = 103,663.66
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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.