Finding the Fourth Proportional to 118,397.09, 163,395.53 and 67,414.28
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Solution
The fourth proportional to 118,397.09, 163,395.53 and 67,414.28 is: 93,035.99
Step by Step Solution
- Step 1: Write the proportion equation
118,397.09 : 163,395.53 = 67,414.28 : x - Step 2: Convert to fraction form
118,397.09/163,395.53 = 67,414.28/x - Step 3: Cross multiply
118,397.09x = 163,395.53 × 67,414.28 - Step 4: Simplify right side
118,397.09x = 11,015,190,856.12 - Step 5: Solve for x
x = 11,015,190,856.12/118,397.09 - Step 6: Final answer
x = 93,035.99
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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.