Finding the Fourth Proportional to 125,471.66, 173,139.36 and 74,475.68
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Solution
The fourth proportional to 125,471.66, 173,139.36 and 74,475.68 is: 102,769.59
Step by Step Solution
- Step 1: Write the proportion equation
125,471.66 : 173,139.36 = 74,475.68 : x - Step 2: Convert to fraction form
125,471.66/173,139.36 = 74,475.68/x - Step 3: Cross multiply
125,471.66x = 173,139.36 × 74,475.68 - Step 4: Simplify right side
125,471.66x = 12,894,670,705.07 - Step 5: Solve for x
x = 12,894,670,705.07/125,471.66 - Step 6: Final answer
x = 102,769.59
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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.