Finding the Fourth Proportional to 145,961.18, 201,426.73 and 78,893.18
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Solution
The fourth proportional to 145,961.18, 201,426.73 and 78,893.18 is: 108,872.75
Step by Step Solution
- Step 1: Write the proportion equation
145,961.18 : 201,426.73 = 78,893.18 : x - Step 2: Convert to fraction form
145,961.18/201,426.73 = 78,893.18/x - Step 3: Cross multiply
145,961.18x = 201,426.73 × 78,893.18 - Step 4: Simplify right side
145,961.18x = 15,891,195,266.70 - Step 5: Solve for x
x = 15,891,195,266.70/145,961.18 - Step 6: Final answer
x = 108,872.75
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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.