Finding the Fourth Proportional to 117,471.79, 162,109.33 and 66,494.19
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Solution
The fourth proportional to 117,471.79, 162,109.33 and 66,494.19 is: 91,760.99
Step by Step Solution
- Step 1: Write the proportion equation
117,471.79 : 162,109.33 = 66,494.19 : x - Step 2: Convert to fraction form
117,471.79/162,109.33 = 66,494.19/x - Step 3: Cross multiply
117,471.79x = 162,109.33 × 66,494.19 - Step 4: Simplify right side
117,471.79x = 10,779,327,779.25 - Step 5: Solve for x
x = 10,779,327,779.25/117,471.79 - Step 6: Final answer
x = 91,760.99
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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.