Finding the Fourth Proportional to 125,657.58, 173,402.70 and 71,947.62
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Solution
The fourth proportional to 125,657.58, 173,402.70 and 71,947.62 is: 99,284.99
Step by Step Solution
- Step 1: Write the proportion equation
125,657.58 : 173,402.70 = 71,947.62 : x - Step 2: Convert to fraction form
125,657.58/173,402.70 = 71,947.62/x - Step 3: Cross multiply
125,657.58x = 173,402.70 × 71,947.62 - Step 4: Simplify right side
125,657.58x = 12,475,911,566.57 - Step 5: Solve for x
x = 12,475,911,566.57/125,657.58 - Step 6: Final answer
x = 99,284.99
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1.5x scale
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.