Finding the Fourth Proportional to 149,762.28, 206,754.96 and 102,085.68
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Solution
The fourth proportional to 149,762.28, 206,754.96 and 102,085.68 is: 140,934.82
Step by Step Solution
- Step 1: Write the proportion equation
149,762.28 : 206,754.96 = 102,085.68 : x - Step 2: Convert to fraction form
149,762.28/206,754.96 = 102,085.68/x - Step 3: Cross multiply
149,762.28x = 206,754.96 × 102,085.68 - Step 4: Simplify right side
149,762.28x = 21,106,720,684.97 - Step 5: Solve for x
x = 21,106,720,684.97/149,762.28 - Step 6: Final answer
x = 140,934.82
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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.