Finding the Fourth Proportional to 118,747.09, 178,132.34 and 34,507.99
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Solution
The fourth proportional to 118,747.09, 178,132.34 and 34,507.99 is: 51,765.39
Step by Step Solution
- Step 1: Write the proportion equation
118,747.09 : 178,132.34 = 34,507.99 : x - Step 2: Convert to fraction form
118,747.09/178,132.34 = 34,507.99/x - Step 3: Cross multiply
118,747.09x = 178,132.34 × 34,507.99 - Step 4: Simplify right side
118,747.09x = 6,146,988,834.86 - Step 5: Solve for x
x = 6,146,988,834.86/118,747.09 - Step 6: Final answer
x = 51,765.39
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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.