Finding the Fourth Proportional to 136,043.55, 190,657.80 and 136,043.55
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Solution
The fourth proportional to 136,043.55, 190,657.80 and 136,043.55 is: 190,657.80
Step by Step Solution
- Step 1: Write the proportion equation
136,043.55 : 190,657.80 = 136,043.55 : x - Step 2: Convert to fraction form
136,043.55/190,657.80 = 136,043.55/x - Step 3: Cross multiply
136,043.55x = 190,657.80 × 136,043.55 - Step 4: Simplify right side
136,043.55x = 25,937,763,947.19 - Step 5: Solve for x
x = 25,937,763,947.19/136,043.55 - Step 6: Final answer
x = 190,657.80
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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.