Finding the Fourth Proportional to 117,781.44, 176,634.72 and 38,880.96
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Solution
The fourth proportional to 117,781.44, 176,634.72 and 38,880.96 is: 58,309.08
Step by Step Solution
- Step 1: Write the proportion equation
117,781.44 : 176,634.72 = 38,880.96 : x - Step 2: Convert to fraction form
117,781.44/176,634.72 = 38,880.96/x - Step 3: Cross multiply
117,781.44x = 176,634.72 × 38,880.96 - Step 4: Simplify right side
117,781.44x = 6,867,727,482.93 - Step 5: Solve for x
x = 6,867,727,482.93/117,781.44 - Step 6: Final answer
x = 58,309.08
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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.