Finding the Fourth Proportional to 150,173.20, 207,239.40 and 83,107.60
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Solution
The fourth proportional to 150,173.20, 207,239.40 and 83,107.60 is: 114,688.70
Step by Step Solution
- Step 1: Write the proportion equation
150,173.20 : 207,239.40 = 83,107.60 : x - Step 2: Convert to fraction form
150,173.20/207,239.40 = 83,107.60/x - Step 3: Cross multiply
150,173.20x = 207,239.40 × 83,107.60 - Step 4: Simplify right side
150,173.20x = 17,223,169,159.44 - Step 5: Solve for x
x = 17,223,169,159.44/150,173.20 - Step 6: Final answer
x = 114,688.70
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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.