Finding the Fourth Proportional to 195,711.08, 270,076.71 and 115,143.80
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Solution
The fourth proportional to 195,711.08, 270,076.71 and 115,143.80 is: 158,895.75
Step by Step Solution
- Step 1: Write the proportion equation
195,711.08 : 270,076.71 = 115,143.80 : x - Step 2: Convert to fraction form
195,711.08/270,076.71 = 115,143.80/x - Step 3: Cross multiply
195,711.08x = 270,076.71 × 115,143.80 - Step 4: Simplify right side
195,711.08x = 31,097,657,762.30 - Step 5: Solve for x
x = 31,097,657,762.30/195,711.08 - Step 6: Final answer
x = 158,895.75
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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.