Finding the Fourth Proportional to 161,751.99, 223,214.73 and 90,130.49
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Solution
The fourth proportional to 161,751.99, 223,214.73 and 90,130.49 is: 124,378.39
Step by Step Solution
- Step 1: Write the proportion equation
161,751.99 : 223,214.73 = 90,130.49 : x - Step 2: Convert to fraction form
161,751.99/223,214.73 = 90,130.49/x - Step 3: Cross multiply
161,751.99x = 223,214.73 × 90,130.49 - Step 4: Simplify right side
161,751.99x = 20,118,451,874.04 - Step 5: Solve for x
x = 20,118,451,874.04/161,751.99 - Step 6: Final answer
x = 124,378.39
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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.