Finding the Fourth Proportional to 155,493.76, 214,684.68 and 119,620.48
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Solution
The fourth proportional to 155,493.76, 214,684.68 and 119,620.48 is: 165,155.72
Step by Step Solution
- Step 1: Write the proportion equation
155,493.76 : 214,684.68 = 119,620.48 : x - Step 2: Convert to fraction form
155,493.76/214,684.68 = 119,620.48/x - Step 3: Cross multiply
155,493.76x = 214,684.68 × 119,620.48 - Step 4: Simplify right side
155,493.76x = 25,680,684,470.25 - Step 5: Solve for x
x = 25,680,684,470.25/155,493.76 - Step 6: Final answer
x = 165,155.72
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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.