Finding the Fourth Proportional to 167,459.49, 231,093.14 and 90,977.99
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Solution
The fourth proportional to 167,459.49, 231,093.14 and 90,977.99 is: 125,549.10
Step by Step Solution
- Step 1: Write the proportion equation
167,459.49 : 231,093.14 = 90,977.99 : x - Step 2: Convert to fraction form
167,459.49/231,093.14 = 90,977.99/x - Step 3: Cross multiply
167,459.49x = 231,093.14 × 90,977.99 - Step 4: Simplify right side
167,459.49x = 21,024,387,769.63 - Step 5: Solve for x
x = 21,024,387,769.63/167,459.49 - Step 6: Final answer
x = 125,549.10
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1.5x scale
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.