Finding the Fourth Proportional to 137,107.80, 205,661.70 and 119,611.80
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Solution
The fourth proportional to 137,107.80, 205,661.70 and 119,611.80 is: 179,417.70
Step by Step Solution
- Step 1: Write the proportion equation
137,107.80 : 205,661.70 = 119,611.80 : x - Step 2: Convert to fraction form
137,107.80/205,661.70 = 119,611.80/x - Step 3: Cross multiply
137,107.80x = 205,661.70 × 119,611.80 - Step 4: Simplify right side
137,107.80x = 24,599,566,128.06 - Step 5: Solve for x
x = 24,599,566,128.06/137,107.80 - Step 6: Final answer
x = 179,417.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.