Finding the Fourth Proportional to 126,418.44, 189,216.18 and 93,125.40
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Solution
The fourth proportional to 126,418.44, 189,216.18 and 93,125.40 is: 139,384.99
Step by Step Solution
- Step 1: Write the proportion equation
126,418.44 : 189,216.18 = 93,125.40 : x - Step 2: Convert to fraction form
126,418.44/189,216.18 = 93,125.40/x - Step 3: Cross multiply
126,418.44x = 189,216.18 × 93,125.40 - Step 4: Simplify right side
126,418.44x = 17,620,832,448.97 - Step 5: Solve for x
x = 17,620,832,448.97/126,418.44 - Step 6: Final answer
x = 139,384.99
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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.