Finding the Fourth Proportional to 118,846.14, 178,157.54 and 39,904.99
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Solution
The fourth proportional to 118,846.14, 178,157.54 and 39,904.99 is: 59,819.99
Step by Step Solution
- Step 1: Write the proportion equation
118,846.14 : 178,157.54 = 39,904.99 : x - Step 2: Convert to fraction form
118,846.14/178,157.54 = 39,904.99/x - Step 3: Cross multiply
118,846.14x = 178,157.54 × 39,904.99 - Step 4: Simplify right side
118,846.14x = 7,109,374,506.49 - Step 5: Solve for x
x = 7,109,374,506.49/118,846.14 - Step 6: Final answer
x = 59,819.99
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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.