Finding the Fourth Proportional to 131,412.24, 181,303.92 and 74,809.44
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Solution
The fourth proportional to 131,412.24, 181,303.92 and 74,809.44 is: 103,211.43
Step by Step Solution
- Step 1: Write the proportion equation
131,412.24 : 181,303.92 = 74,809.44 : x - Step 2: Convert to fraction form
131,412.24/181,303.92 = 74,809.44/x - Step 3: Cross multiply
131,412.24x = 181,303.92 × 74,809.44 - Step 4: Simplify right side
131,412.24x = 13,563,244,725.00 - Step 5: Solve for x
x = 13,563,244,725.00/131,412.24 - Step 6: Final answer
x = 103,211.43
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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.