Finding the Fourth Proportional to 106,438.74, 159,661.88 and 26,477.12
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Solution
The fourth proportional to 106,438.74, 159,661.88 and 26,477.12 is: 39,716.62
Step by Step Solution
- Step 1: Write the proportion equation
106,438.74 : 159,661.88 = 26,477.12 : x - Step 2: Convert to fraction form
106,438.74/159,661.88 = 26,477.12/x - Step 3: Cross multiply
106,438.74x = 159,661.88 × 26,477.12 - Step 4: Simplify right side
106,438.74x = 4,227,386,756.19 - Step 5: Solve for x
x = 4,227,386,756.19/106,438.74 - Step 6: Final answer
x = 39,716.62
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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.