Finding the Fourth Proportional to 118,566.18, 163,626.57 and 68,281.38
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Solution
The fourth proportional to 118,566.18, 163,626.57 and 68,281.38 is: 94,231.32
Step by Step Solution
- Step 1: Write the proportion equation
118,566.18 : 163,626.57 = 68,281.38 : x - Step 2: Convert to fraction form
118,566.18/163,626.57 = 68,281.38/x - Step 3: Cross multiply
118,566.18x = 163,626.57 × 68,281.38 - Step 4: Simplify right side
118,566.18x = 11,172,648,004.27 - Step 5: Solve for x
x = 11,172,648,004.27/118,566.18 - Step 6: Final answer
x = 94,231.32
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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.