Finding the Fourth Proportional to 118,569.21, 163,631.49 and 70,198.90
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Solution
The fourth proportional to 118,569.21, 163,631.49 and 70,198.90 is: 96,878.02
Step by Step Solution
- Step 1: Write the proportion equation
118,569.21 : 163,631.49 = 70,198.90 : x - Step 2: Convert to fraction form
118,569.21/163,631.49 = 70,198.90/x - Step 3: Cross multiply
118,569.21x = 163,631.49 × 70,198.90 - Step 4: Simplify right side
118,569.21x = 11,486,750,603.36 - Step 5: Solve for x
x = 11,486,750,603.36/118,569.21 - Step 6: Final answer
x = 96,878.02
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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.