Finding the Fourth Proportional to 126,737.70, 190,106.55 and 118,961.70
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Solution
The fourth proportional to 126,737.70, 190,106.55 and 118,961.70 is: 178,442.55
Step by Step Solution
- Step 1: Write the proportion equation
126,737.70 : 190,106.55 = 118,961.70 : x - Step 2: Convert to fraction form
126,737.70/190,106.55 = 118,961.70/x - Step 3: Cross multiply
126,737.70x = 190,106.55 × 118,961.70 - Step 4: Simplify right side
126,737.70x = 22,615,398,369.14 - Step 5: Solve for x
x = 22,615,398,369.14/126,737.70 - Step 6: Final answer
x = 178,442.55
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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.