Finding the Fourth Proportional to 118,720.08, 178,072.56 and 29,973.24
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Solution
The fourth proportional to 118,720.08, 178,072.56 and 29,973.24 is: 44,957.95
Step by Step Solution
- Step 1: Write the proportion equation
118,720.08 : 178,072.56 = 29,973.24 : x - Step 2: Convert to fraction form
118,720.08/178,072.56 = 29,973.24/x - Step 3: Cross multiply
118,720.08x = 178,072.56 × 29,973.24 - Step 4: Simplify right side
118,720.08x = 5,337,411,578.29 - Step 5: Solve for x
x = 5,337,411,578.29/118,720.08 - Step 6: Final answer
x = 44,957.95
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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.