Finding the Fourth Proportional to 125,471.84, 173,135.68 and 74,485.58
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Solution
The fourth proportional to 125,471.84, 173,135.68 and 74,485.58 is: 102,780.92
Step by Step Solution
- Step 1: Write the proportion equation
125,471.84 : 173,135.68 = 74,485.58 : x - Step 2: Convert to fraction form
125,471.84/173,135.68 = 74,485.58/x - Step 3: Cross multiply
125,471.84x = 173,135.68 × 74,485.58 - Step 4: Simplify right side
125,471.84x = 12,896,110,491.60 - Step 5: Solve for x
x = 12,896,110,491.60/125,471.84 - Step 6: Final answer
x = 102,780.92
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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.