Finding the Fourth Proportional to 140,117.92, 193,366.98 and 79,697.26
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Solution
The fourth proportional to 140,117.92, 193,366.98 and 79,697.26 is: 109,984.64
Step by Step Solution
- Step 1: Write the proportion equation
140,117.92 : 193,366.98 = 79,697.26 : x - Step 2: Convert to fraction form
140,117.92/193,366.98 = 79,697.26/x - Step 3: Cross multiply
140,117.92x = 193,366.98 × 79,697.26 - Step 4: Simplify right side
140,117.92x = 15,410,818,480.47 - Step 5: Solve for x
x = 15,410,818,480.47/140,117.92 - Step 6: Final answer
x = 109,984.64
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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.