Finding the Fourth Proportional to 180,535.75, 249,119.21 and 99,943.09
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Solution
The fourth proportional to 180,535.75, 249,119.21 and 99,943.09 is: 137,910.32
Step by Step Solution
- Step 1: Write the proportion equation
180,535.75 : 249,119.21 = 99,943.09 : x - Step 2: Convert to fraction form
180,535.75/249,119.21 = 99,943.09/x - Step 3: Cross multiply
180,535.75x = 249,119.21 × 99,943.09 - Step 4: Simplify right side
180,535.75x = 24,897,743,252.82 - Step 5: Solve for x
x = 24,897,743,252.82/180,535.75 - Step 6: Final answer
x = 137,910.32
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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.