Finding the Fourth Proportional to 157,621.40, 236,432.10 and 98,523.80
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Solution
The fourth proportional to 157,621.40, 236,432.10 and 98,523.80 is: 147,785.70
Step by Step Solution
- Step 1: Write the proportion equation
157,621.40 : 236,432.10 = 98,523.80 : x - Step 2: Convert to fraction form
157,621.40/236,432.10 = 98,523.80/x - Step 3: Cross multiply
157,621.40x = 236,432.10 × 98,523.80 - Step 4: Simplify right side
157,621.40x = 23,294,188,933.98 - Step 5: Solve for x
x = 23,294,188,933.98/157,621.40 - Step 6: Final answer
x = 147,785.70
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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.