Finding the Fourth Proportional to 118,768.18, 178,168.66 and 39,904.96
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Solution
The fourth proportional to 118,768.18, 178,168.66 and 39,904.96 is: 59,862.95
Step by Step Solution
- Step 1: Write the proportion equation
118,768.18 : 178,168.66 = 39,904.96 : x - Step 2: Convert to fraction form
118,768.18/178,168.66 = 39,904.96/x - Step 3: Cross multiply
118,768.18x = 178,168.66 × 39,904.96 - Step 4: Simplify right side
118,768.18x = 7,109,813,250.55 - Step 5: Solve for x
x = 7,109,813,250.55/118,768.18 - Step 6: Final answer
x = 59,862.95
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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.