Finding the Fourth Proportional to 149,532.60, 206,352.34 and 81,550.08
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Solution
The fourth proportional to 149,532.60, 206,352.34 and 81,550.08 is: 112,537.67
Step by Step Solution
- Step 1: Write the proportion equation
149,532.60 : 206,352.34 = 81,550.08 : x - Step 2: Convert to fraction form
149,532.60/206,352.34 = 81,550.08/x - Step 3: Cross multiply
149,532.60x = 206,352.34 × 81,550.08 - Step 4: Simplify right side
149,532.60x = 16,828,049,835.19 - Step 5: Solve for x
x = 16,828,049,835.19/149,532.60 - Step 6: Final answer
x = 112,537.67
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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.