Finding the Fourth Proportional to 119,703.63, 165,202.68 and 89,436.43
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Solution
The fourth proportional to 119,703.63, 165,202.68 and 89,436.43 is: 123,430.99
Step by Step Solution
- Step 1: Write the proportion equation
119,703.63 : 165,202.68 = 89,436.43 : x - Step 2: Convert to fraction form
119,703.63/165,202.68 = 89,436.43/x - Step 3: Cross multiply
119,703.63x = 165,202.68 × 89,436.43 - Step 4: Simplify right side
119,703.63x = 14,775,137,925.63 - Step 5: Solve for x
x = 14,775,137,925.63/119,703.63 - Step 6: Final answer
x = 123,430.99
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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.