Finding the Fourth Proportional to 121,368.48, 182,135.28 and 74,478.24
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Solution
The fourth proportional to 121,368.48, 182,135.28 and 74,478.24 is: 111,768.02
Step by Step Solution
- Step 1: Write the proportion equation
121,368.48 : 182,135.28 = 74,478.24 : x - Step 2: Convert to fraction form
121,368.48/182,135.28 = 74,478.24/x - Step 3: Cross multiply
121,368.48x = 182,135.28 × 74,478.24 - Step 4: Simplify right side
121,368.48x = 13,565,115,096.31 - Step 5: Solve for x
x = 13,565,115,096.31/121,368.48 - Step 6: Final answer
x = 111,768.02
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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.