Finding the Fourth Proportional to 163,346.56, 225,405.99 and 91,712.93
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Solution
The fourth proportional to 163,346.56, 225,405.99 and 91,712.93 is: 126,556.95
Step by Step Solution
- Step 1: Write the proportion equation
163,346.56 : 225,405.99 = 91,712.93 : x - Step 2: Convert to fraction form
163,346.56/225,405.99 = 91,712.93/x - Step 3: Cross multiply
163,346.56x = 225,405.99 × 91,712.93 - Step 4: Simplify right side
163,346.56x = 20,672,642,655.42 - Step 5: Solve for x
x = 20,672,642,655.42/163,346.56 - Step 6: Final answer
x = 126,556.95
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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.