Finding the Fourth Proportional to 144,738.97, 199,750.85 and 91,069.99
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Solution
The fourth proportional to 144,738.97, 199,750.85 and 91,069.99 is: 125,683.55
Step by Step Solution
- Step 1: Write the proportion equation
144,738.97 : 199,750.85 = 91,069.99 : x - Step 2: Convert to fraction form
144,738.97/199,750.85 = 91,069.99/x - Step 3: Cross multiply
144,738.97x = 199,750.85 × 91,069.99 - Step 4: Simplify right side
144,738.97x = 18,191,307,140.91 - Step 5: Solve for x
x = 18,191,307,140.91/144,738.97 - Step 6: Final answer
x = 125,683.55
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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.