Finding the Fourth Proportional to 161,747.99, 223,209.22 and 90,126.49
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Solution
The fourth proportional to 161,747.99, 223,209.22 and 90,126.49 is: 124,372.88
Step by Step Solution
- Step 1: Write the proportion equation
161,747.99 : 223,209.22 = 90,126.49 : x - Step 2: Convert to fraction form
161,747.99/223,209.22 = 90,126.49/x - Step 3: Cross multiply
161,747.99x = 223,209.22 × 90,126.49 - Step 4: Simplify right side
161,747.99x = 20,117,063,534.24 - Step 5: Solve for x
x = 20,117,063,534.24/161,747.99 - Step 6: Final answer
x = 124,372.88
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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.