Finding the Fourth Proportional to 138,320.10, 207,480.15 and 96,329.70
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Solution
The fourth proportional to 138,320.10, 207,480.15 and 96,329.70 is: 144,494.55
Step by Step Solution
- Step 1: Write the proportion equation
138,320.10 : 207,480.15 = 96,329.70 : x - Step 2: Convert to fraction form
138,320.10/207,480.15 = 96,329.70/x - Step 3: Cross multiply
138,320.10x = 207,480.15 × 96,329.70 - Step 4: Simplify right side
138,320.10x = 19,986,500,605.46 - Step 5: Solve for x
x = 19,986,500,605.46/138,320.10 - Step 6: Final answer
x = 144,494.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.