Finding the Fourth Proportional to 99,487.68, 149,231.52 and 75,848.64
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Solution
The fourth proportional to 99,487.68, 149,231.52 and 75,848.64 is: 113,772.96
Step by Step Solution
- Step 1: Write the proportion equation
99,487.68 : 149,231.52 = 75,848.64 : x - Step 2: Convert to fraction form
99,487.68/149,231.52 = 75,848.64/x - Step 3: Cross multiply
99,487.68x = 149,231.52 × 75,848.64 - Step 4: Simplify right side
99,487.68x = 11,319,007,837.13 - Step 5: Solve for x
x = 11,319,007,837.13/99,487.68 - Step 6: Final answer
x = 113,772.96
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.