Finding the Fourth Proportional to 161,803.99, 223,294.76 and 90,199.18
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Solution
The fourth proportional to 161,803.99, 223,294.76 and 90,199.18 is: 124,477.80
Step by Step Solution
- Step 1: Write the proportion equation
161,803.99 : 223,294.76 = 90,199.18 : x - Step 2: Convert to fraction form
161,803.99/223,294.76 = 90,199.18/x - Step 3: Cross multiply
161,803.99x = 223,294.76 × 90,199.18 - Step 4: Simplify right side
161,803.99x = 20,141,004,250.30 - Step 5: Solve for x
x = 20,141,004,250.30/161,803.99 - Step 6: Final answer
x = 124,477.80
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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.