Finding the Fourth Proportional to 98,698.41, 136,198.62 and 55,676.66
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Solution
The fourth proportional to 98,698.41, 136,198.62 and 55,676.66 is: 76,830.86
Step by Step Solution
- Step 1: Write the proportion equation
98,698.41 : 136,198.62 = 55,676.66 : x - Step 2: Convert to fraction form
98,698.41/136,198.62 = 55,676.66/x - Step 3: Cross multiply
98,698.41x = 136,198.62 × 55,676.66 - Step 4: Simplify right side
98,698.41x = 7,583,083,577.22 - Step 5: Solve for x
x = 7,583,083,577.22/98,698.41 - Step 6: Final answer
x = 76,830.86
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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.