Finding the Fourth Proportional to 145,918.02, 201,366.36 and 78,850.02
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Solution
The fourth proportional to 145,918.02, 201,366.36 and 78,850.02 is: 108,812.75
Step by Step Solution
- Step 1: Write the proportion equation
145,918.02 : 201,366.36 = 78,850.02 : x - Step 2: Convert to fraction form
145,918.02/201,366.36 = 78,850.02/x - Step 3: Cross multiply
145,918.02x = 201,366.36 × 78,850.02 - Step 4: Simplify right side
145,918.02x = 15,877,741,513.33 - Step 5: Solve for x
x = 15,877,741,513.33/145,918.02 - Step 6: Final answer
x = 108,812.75
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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.