Finding the Fourth Proportional to 84,811.70, 118,891.90 and 84,811.70
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Solution
The fourth proportional to 84,811.70, 118,891.90 and 84,811.70 is: 118,891.90
Step by Step Solution
- Step 1: Write the proportion equation
84,811.70 : 118,891.90 = 84,811.70 : x - Step 2: Convert to fraction form
84,811.70/118,891.90 = 84,811.70/x - Step 3: Cross multiply
84,811.70x = 118,891.90 × 84,811.70 - Step 4: Simplify right side
84,811.70x = 10,083,424,155.23 - Step 5: Solve for x
x = 10,083,424,155.23/84,811.70 - Step 6: Final answer
x = 118,891.90
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.