Finding the Fourth Proportional to 161,967.81, 223,512.96 and 90,345.99
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Solution
The fourth proportional to 161,967.81, 223,512.96 and 90,345.99 is: 124,676.01
Step by Step Solution
- Step 1: Write the proportion equation
161,967.81 : 223,512.96 = 90,345.99 : x - Step 2: Convert to fraction form
161,967.81/223,512.96 = 90,345.99/x - Step 3: Cross multiply
161,967.81x = 223,512.96 × 90,345.99 - Step 4: Simplify right side
161,967.81x = 20,193,499,649.03 - Step 5: Solve for x
x = 20,193,499,649.03/161,967.81 - Step 6: Final answer
x = 124,676.01
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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.