Finding the Fourth Proportional to 163,547.10, 245,415.84 and 68,770.42
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Solution
The fourth proportional to 163,547.10, 245,415.84 and 68,770.42 is: 103,195.66
Step by Step Solution
- Step 1: Write the proportion equation
163,547.10 : 245,415.84 = 68,770.42 : x - Step 2: Convert to fraction form
163,547.10/245,415.84 = 68,770.42/x - Step 3: Cross multiply
163,547.10x = 245,415.84 × 68,770.42 - Step 4: Simplify right side
163,547.10x = 16,877,350,391.45 - Step 5: Solve for x
x = 16,877,350,391.45/163,547.10 - Step 6: Final answer
x = 103,195.66
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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.