Finding the Fourth Proportional to 126,907.41, 190,232.94 and 79,555.70
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Solution
The fourth proportional to 126,907.41, 190,232.94 and 79,555.70 is: 119,253.19
Step by Step Solution
- Step 1: Write the proportion equation
126,907.41 : 190,232.94 = 79,555.70 : x - Step 2: Convert to fraction form
126,907.41/190,232.94 = 79,555.70/x - Step 3: Cross multiply
126,907.41x = 190,232.94 × 79,555.70 - Step 4: Simplify right side
126,907.41x = 15,134,113,753.59 - Step 5: Solve for x
x = 15,134,113,753.59/126,907.41 - Step 6: Final answer
x = 119,253.19
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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.