Finding the Fourth Proportional to 145,892.63, 201,331.83 and 78,824.63
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Solution
The fourth proportional to 145,892.63, 201,331.83 and 78,824.63 is: 108,777.99
Step by Step Solution
- Step 1: Write the proportion equation
145,892.63 : 201,331.83 = 78,824.63 : x - Step 2: Convert to fraction form
145,892.63/201,331.83 = 78,824.63/x - Step 3: Cross multiply
145,892.63x = 201,331.83 × 78,824.63 - Step 4: Simplify right side
145,892.63x = 15,869,906,000.31 - Step 5: Solve for x
x = 15,869,906,000.31/145,892.63 - Step 6: Final answer
x = 108,777.99
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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.