Finding the Fourth Proportional to 84,880.80, 118,677.60 and 84,880.80
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Solution
The fourth proportional to 84,880.80, 118,677.60 and 84,880.80 is: 118,677.60
Step by Step Solution
- Step 1: Write the proportion equation
84,880.80 : 118,677.60 = 84,880.80 : x - Step 2: Convert to fraction form
84,880.80/118,677.60 = 84,880.80/x - Step 3: Cross multiply
84,880.80x = 118,677.60 × 84,880.80 - Step 4: Simplify right side
84,880.80x = 10,073,449,630.08 - Step 5: Solve for x
x = 10,073,449,630.08/84,880.80 - Step 6: Final answer
x = 118,677.60
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1.5x scale
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.