Finding the Fourth Proportional to 108,962.79, 150,315.26 and 68,657.19
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Solution
The fourth proportional to 108,962.79, 150,315.26 and 68,657.19 is: 94,713.28
Step by Step Solution
- Step 1: Write the proportion equation
108,962.79 : 150,315.26 = 68,657.19 : x - Step 2: Convert to fraction form
108,962.79/150,315.26 = 68,657.19/x - Step 3: Cross multiply
108,962.79x = 150,315.26 × 68,657.19 - Step 4: Simplify right side
108,962.79x = 10,320,223,022.43 - Step 5: Solve for x
x = 10,320,223,022.43/108,962.79 - Step 6: Final answer
x = 94,713.28
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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.