Finding the Fourth Proportional to 118,872.24, 178,587.06 and 112,147.08
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Solution
The fourth proportional to 118,872.24, 178,587.06 and 112,147.08 is: 168,483.55
Step by Step Solution
- Step 1: Write the proportion equation
118,872.24 : 178,587.06 = 112,147.08 : x - Step 2: Convert to fraction form
118,872.24/178,587.06 = 112,147.08/x - Step 3: Cross multiply
118,872.24x = 178,587.06 × 112,147.08 - Step 4: Simplify right side
118,872.24x = 20,028,017,304.78 - Step 5: Solve for x
x = 20,028,017,304.78/118,872.24 - Step 6: Final answer
x = 168,483.55
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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.