Finding the Fourth Proportional to 110,939.19, 153,078.97 and 63,186.45
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Solution
The fourth proportional to 110,939.19, 153,078.97 and 63,186.45 is: 87,187.55
Step by Step Solution
- Step 1: Write the proportion equation
110,939.19 : 153,078.97 = 63,186.45 : x - Step 2: Convert to fraction form
110,939.19/153,078.97 = 63,186.45/x - Step 3: Cross multiply
110,939.19x = 153,078.97 × 63,186.45 - Step 4: Simplify right side
110,939.19x = 9,672,516,683.96 - Step 5: Solve for x
x = 9,672,516,683.96/110,939.19 - Step 6: Final answer
x = 87,187.55
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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.