Finding the Fourth Proportional to 107,473.99, 148,157.79 and 75,108.12
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Solution
The fourth proportional to 107,473.99, 148,157.79 and 75,108.12 is: 103,539.96
Step by Step Solution
- Step 1: Write the proportion equation
107,473.99 : 148,157.79 = 75,108.12 : x - Step 2: Convert to fraction form
107,473.99/148,157.79 = 75,108.12/x - Step 3: Cross multiply
107,473.99x = 148,157.79 × 75,108.12 - Step 4: Simplify right side
107,473.99x = 11,127,853,070.25 - Step 5: Solve for x
x = 11,127,853,070.25/107,473.99 - Step 6: Final answer
x = 103,539.96
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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.