Finding the Fourth Proportional to 126,266.93, 174,278.18 and 72,583.09
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Solution
The fourth proportional to 126,266.93, 174,278.18 and 72,583.09 is: 100,181.81
Step by Step Solution
- Step 1: Write the proportion equation
126,266.93 : 174,278.18 = 72,583.09 : x - Step 2: Convert to fraction form
126,266.93/174,278.18 = 72,583.09/x - Step 3: Cross multiply
126,266.93x = 174,278.18 × 72,583.09 - Step 4: Simplify right side
126,266.93x = 12,649,648,569.74 - Step 5: Solve for x
x = 12,649,648,569.74/126,266.93 - Step 6: Final answer
x = 100,181.81
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.