Finding the Fourth Proportional to 145,664.08, 201,013.34 and 81,133.12
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Solution
The fourth proportional to 145,664.08, 201,013.34 and 81,133.12 is: 111,961.98
Step by Step Solution
- Step 1: Write the proportion equation
145,664.08 : 201,013.34 = 81,133.12 : x - Step 2: Convert to fraction form
145,664.08/201,013.34 = 81,133.12/x - Step 3: Cross multiply
145,664.08x = 201,013.34 × 81,133.12 - Step 4: Simplify right side
145,664.08x = 16,308,838,025.09 - Step 5: Solve for x
x = 16,308,838,025.09/145,664.08 - Step 6: Final answer
x = 111,961.98
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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.