Finding the Fourth Proportional to 107,989.63, 149,029.75 and 60,252.21
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Solution
The fourth proportional to 107,989.63, 149,029.75 and 60,252.21 is: 83,150.32
Step by Step Solution
- Step 1: Write the proportion equation
107,989.63 : 149,029.75 = 60,252.21 : x - Step 2: Convert to fraction form
107,989.63/149,029.75 = 60,252.21/x - Step 3: Cross multiply
107,989.63x = 149,029.75 × 60,252.21 - Step 4: Simplify right side
107,989.63x = 8,979,371,793.25 - Step 5: Solve for x
x = 8,979,371,793.25/107,989.63 - Step 6: Final answer
x = 83,150.32
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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.