Finding the Fourth Proportional to 117,439.68, 162,006.48 and 74,346.08
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Solution
The fourth proportional to 117,439.68, 162,006.48 and 74,346.08 is: 102,559.43
Step by Step Solution
- Step 1: Write the proportion equation
117,439.68 : 162,006.48 = 74,346.08 : x - Step 2: Convert to fraction form
117,439.68/162,006.48 = 74,346.08/x - Step 3: Cross multiply
117,439.68x = 162,006.48 × 74,346.08 - Step 4: Simplify right side
117,439.68x = 12,044,546,722.60 - Step 5: Solve for x
x = 12,044,546,722.60/117,439.68 - Step 6: Final answer
x = 102,559.43
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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.