Finding the Fourth Proportional to 106,989.26, 147,603.06 and 68,743.08
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Solution
The fourth proportional to 106,989.26, 147,603.06 and 68,743.08 is: 94,838.39
Step by Step Solution
- Step 1: Write the proportion equation
106,989.26 : 147,603.06 = 68,743.08 : x - Step 2: Convert to fraction form
106,989.26/147,603.06 = 68,743.08/x - Step 3: Cross multiply
106,989.26x = 147,603.06 × 68,743.08 - Step 4: Simplify right side
106,989.26x = 10,146,688,961.82 - Step 5: Solve for x
x = 10,146,688,961.82/106,989.26 - Step 6: Final answer
x = 94,838.39
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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.