Finding the Fourth Proportional to 131,256.48, 181,135.20 and 74,671.68
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Solution
The fourth proportional to 131,256.48, 181,135.20 and 74,671.68 is: 103,047.63
Step by Step Solution
- Step 1: Write the proportion equation
131,256.48 : 181,135.20 = 74,671.68 : x - Step 2: Convert to fraction form
131,256.48/181,135.20 = 74,671.68/x - Step 3: Cross multiply
131,256.48x = 181,135.20 × 74,671.68 - Step 4: Simplify right side
131,256.48x = 13,525,669,691.14 - Step 5: Solve for x
x = 13,525,669,691.14/131,256.48 - Step 6: Final answer
x = 103,047.63
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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.