Finding the Fourth Proportional to 145,695.08, 218,672.42 and 74,666.09
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Solution
The fourth proportional to 145,695.08, 218,672.42 and 74,666.09 is: 112,065.65
Step by Step Solution
- Step 1: Write the proportion equation
145,695.08 : 218,672.42 = 74,666.09 : x - Step 2: Convert to fraction form
145,695.08/218,672.42 = 74,666.09/x - Step 3: Cross multiply
145,695.08x = 218,672.42 × 74,666.09 - Step 4: Simplify right side
145,695.08x = 16,327,413,125.55 - Step 5: Solve for x
x = 16,327,413,125.55/145,695.08 - Step 6: Final answer
x = 112,065.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.