Finding the Fourth Proportional to 125,644.56, 173,399.40 and 71,946.48
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Solution
The fourth proportional to 125,644.56, 173,399.40 and 71,946.48 is: 99,291.82
Step by Step Solution
- Step 1: Write the proportion equation
125,644.56 : 173,399.40 = 71,946.48 : x - Step 2: Convert to fraction form
125,644.56/173,399.40 = 71,946.48/x - Step 3: Cross multiply
125,644.56x = 173,399.40 × 71,946.48 - Step 4: Simplify right side
125,644.56x = 12,475,476,464.11 - Step 5: Solve for x
x = 12,475,476,464.11/125,644.56 - Step 6: Final answer
x = 99,291.82
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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.