Finding the Fourth Proportional to 117,370.44, 161,759.70 and 85,488.84
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Solution
The fourth proportional to 117,370.44, 161,759.70 and 85,488.84 is: 117,820.54
Step by Step Solution
- Step 1: Write the proportion equation
117,370.44 : 161,759.70 = 85,488.84 : x - Step 2: Convert to fraction form
117,370.44/161,759.70 = 85,488.84/x - Step 3: Cross multiply
117,370.44x = 161,759.70 × 85,488.84 - Step 4: Simplify right side
117,370.44x = 13,828,649,111.75 - Step 5: Solve for x
x = 13,828,649,111.75/117,370.44 - Step 6: Final answer
x = 117,820.54
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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.