Finding the Fourth Proportional to 149,766.44, 206,660.70 and 86,124.74
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Solution
The fourth proportional to 149,766.44, 206,660.70 and 86,124.74 is: 118,842.37
Step by Step Solution
- Step 1: Write the proportion equation
149,766.44 : 206,660.70 = 86,124.74 : x - Step 2: Convert to fraction form
149,766.44/206,660.70 = 86,124.74/x - Step 3: Cross multiply
149,766.44x = 206,660.70 × 86,124.74 - Step 4: Simplify right side
149,766.44x = 17,798,598,022.41 - Step 5: Solve for x
x = 17,798,598,022.41/149,766.44 - Step 6: Final answer
x = 118,842.37
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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.