Finding the Fourth Proportional to 117,052.36, 161,379.75 and 74,595.40
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Solution
The fourth proportional to 117,052.36, 161,379.75 and 74,595.40 is: 102,844.46
Step by Step Solution
- Step 1: Write the proportion equation
117,052.36 : 161,379.75 = 74,595.40 : x - Step 2: Convert to fraction form
117,052.36/161,379.75 = 74,595.40/x - Step 3: Cross multiply
117,052.36x = 161,379.75 × 74,595.40 - Step 4: Simplify right side
117,052.36x = 12,038,187,003.15 - Step 5: Solve for x
x = 12,038,187,003.15/117,052.36 - Step 6: Final answer
x = 102,844.46
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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.