Finding the Fourth Proportional to 119,312.75, 178,970.21 and 36,206.75
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Solution
The fourth proportional to 119,312.75, 178,970.21 and 36,206.75 is: 54,310.45
Step by Step Solution
- Step 1: Write the proportion equation
119,312.75 : 178,970.21 = 36,206.75 : x - Step 2: Convert to fraction form
119,312.75/178,970.21 = 36,206.75/x - Step 3: Cross multiply
119,312.75x = 178,970.21 × 36,206.75 - Step 4: Simplify right side
119,312.75x = 6,479,929,650.92 - Step 5: Solve for x
x = 6,479,929,650.92/119,312.75 - Step 6: Final answer
x = 54,310.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.