Finding the Fourth Proportional to 150,668.51, 207,917.86 and 82,683.74
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Solution
The fourth proportional to 150,668.51, 207,917.86 and 82,683.74 is: 114,100.99
Step by Step Solution
- Step 1: Write the proportion equation
150,668.51 : 207,917.86 = 82,683.74 : x - Step 2: Convert to fraction form
150,668.51/207,917.86 = 82,683.74/x - Step 3: Cross multiply
150,668.51x = 207,917.86 × 82,683.74 - Step 4: Simplify right side
150,668.51x = 17,191,426,115.22 - Step 5: Solve for x
x = 17,191,426,115.22/150,668.51 - Step 6: Final answer
x = 114,100.99
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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.