Finding the Fourth Proportional to 140,850.09, 194,373.30 and 76,319.28
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Solution
The fourth proportional to 140,850.09, 194,373.30 and 76,319.28 is: 105,320.70
Step by Step Solution
- Step 1: Write the proportion equation
140,850.09 : 194,373.30 = 76,319.28 : x - Step 2: Convert to fraction form
140,850.09/194,373.30 = 76,319.28/x - Step 3: Cross multiply
140,850.09x = 194,373.30 × 76,319.28 - Step 4: Simplify right side
140,850.09x = 14,834,430,378.77 - Step 5: Solve for x
x = 14,834,430,378.77/140,850.09 - Step 6: Final answer
x = 105,320.70
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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.