Finding the Fourth Proportional to 163,199.68, 225,197.28 and 91,564.80
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Solution
The fourth proportional to 163,199.68, 225,197.28 and 91,564.80 is: 126,349.17
Step by Step Solution
- Step 1: Write the proportion equation
163,199.68 : 225,197.28 = 91,564.80 : x - Step 2: Convert to fraction form
163,199.68/225,197.28 = 91,564.80/x - Step 3: Cross multiply
163,199.68x = 225,197.28 × 91,564.80 - Step 4: Simplify right side
163,199.68x = 20,620,143,903.74 - Step 5: Solve for x
x = 20,620,143,903.74/163,199.68 - Step 6: Final answer
x = 126,349.17
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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.