Finding the Fourth Proportional to 124,043.99, 171,193.41 and 73,072.76
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Solution
The fourth proportional to 124,043.99, 171,193.41 and 73,072.76 is: 100,847.89
Step by Step Solution
- Step 1: Write the proportion equation
124,043.99 : 171,193.41 = 73,072.76 : x - Step 2: Convert to fraction form
124,043.99/171,193.41 = 73,072.76/x - Step 3: Cross multiply
124,043.99x = 171,193.41 × 73,072.76 - Step 4: Simplify right side
124,043.99x = 12,509,574,106.54 - Step 5: Solve for x
x = 12,509,574,106.54/124,043.99 - Step 6: Final answer
x = 100,847.89
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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.