Finding the Fourth Proportional to 119,559.63, 165,071.70 and 74,305.14
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Solution
The fourth proportional to 119,559.63, 165,071.70 and 74,305.14 is: 102,590.45
Step by Step Solution
- Step 1: Write the proportion equation
119,559.63 : 165,071.70 = 74,305.14 : x - Step 2: Convert to fraction form
119,559.63/165,071.70 = 74,305.14/x - Step 3: Cross multiply
119,559.63x = 165,071.70 × 74,305.14 - Step 4: Simplify right side
119,559.63x = 12,265,675,778.54 - Step 5: Solve for x
x = 12,265,675,778.54/119,559.63 - Step 6: Final answer
x = 102,590.45
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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.