Finding the Fourth Proportional to 106,478.08, 159,559.34 and 43,221.23
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Solution
The fourth proportional to 106,478.08, 159,559.34 and 43,221.23 is: 64,767.80
Step by Step Solution
- Step 1: Write the proportion equation
106,478.08 : 159,559.34 = 43,221.23 : x - Step 2: Convert to fraction form
106,478.08/159,559.34 = 43,221.23/x - Step 3: Cross multiply
106,478.08x = 159,559.34 × 43,221.23 - Step 4: Simplify right side
106,478.08x = 6,896,350,517.23 - Step 5: Solve for x
x = 6,896,350,517.23/106,478.08 - Step 6: Final answer
x = 64,767.80
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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.