Finding the Fourth Proportional to 131,342.58, 181,234.53 and 73,972.26
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Solution
The fourth proportional to 131,342.58, 181,234.53 and 73,972.26 is: 102,071.45
Step by Step Solution
- Step 1: Write the proportion equation
131,342.58 : 181,234.53 = 73,972.26 : x - Step 2: Convert to fraction form
131,342.58/181,234.53 = 73,972.26/x - Step 3: Cross multiply
131,342.58x = 181,234.53 × 73,972.26 - Step 4: Simplify right side
131,342.58x = 13,406,327,774.14 - Step 5: Solve for x
x = 13,406,327,774.14/131,342.58 - Step 6: Final answer
x = 102,071.45
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1.5x scale
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.