Finding the Fourth Proportional to 161,750.99, 223,213.35 and 90,129.49
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Solution
The fourth proportional to 161,750.99, 223,213.35 and 90,129.49 is: 124,377.02
Step by Step Solution
- Step 1: Write the proportion equation
161,750.99 : 223,213.35 = 90,129.49 : x - Step 2: Convert to fraction form
161,750.99/223,213.35 = 90,129.49/x - Step 3: Cross multiply
161,750.99x = 223,213.35 × 90,129.49 - Step 4: Simplify right side
161,750.99x = 20,118,105,396.69 - Step 5: Solve for x
x = 20,118,105,396.69/161,750.99 - Step 6: Final answer
x = 124,377.02
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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.