Finding the Fourth Proportional to 172,394.21, 237,752.57 and 120,684.81
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Solution
The fourth proportional to 172,394.21, 237,752.57 and 120,684.81 is: 166,439.02
Step by Step Solution
- Step 1: Write the proportion equation
172,394.21 : 237,752.57 = 120,684.81 : x - Step 2: Convert to fraction form
172,394.21/237,752.57 = 120,684.81/x - Step 3: Cross multiply
172,394.21x = 237,752.57 × 120,684.81 - Step 4: Simplify right side
172,394.21x = 28,693,123,134.04 - Step 5: Solve for x
x = 28,693,123,134.04/172,394.21 - Step 6: Final answer
x = 166,439.02
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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.