Finding the Fourth Proportional to 131,372.24, 181,228.74 and 77,631.26
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Solution
The fourth proportional to 131,372.24, 181,228.74 and 77,631.26 is: 107,092.76
Step by Step Solution
- Step 1: Write the proportion equation
131,372.24 : 181,228.74 = 77,631.26 : x - Step 2: Convert to fraction form
131,372.24/181,228.74 = 77,631.26/x - Step 3: Cross multiply
131,372.24x = 181,228.74 × 77,631.26 - Step 4: Simplify right side
131,372.24x = 14,069,015,434.41 - Step 5: Solve for x
x = 14,069,015,434.41/131,372.24 - Step 6: Final answer
x = 107,092.76
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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.