Finding the Fourth Proportional to 163,278.99, 225,309.60 and 91,645.02
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Solution
The fourth proportional to 163,278.99, 225,309.60 and 91,645.02 is: 126,461.48
Step by Step Solution
- Step 1: Write the proportion equation
163,278.99 : 225,309.60 = 91,645.02 : x - Step 2: Convert to fraction form
163,278.99/225,309.60 = 91,645.02/x - Step 3: Cross multiply
163,278.99x = 225,309.60 × 91,645.02 - Step 4: Simplify right side
163,278.99x = 20,648,502,798.19 - Step 5: Solve for x
x = 20,648,502,798.19/163,278.99 - Step 6: Final answer
x = 126,461.48
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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.