Finding the Fourth Proportional to 118,840.35, 164,000.97 and 65,124.21
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Solution
The fourth proportional to 118,840.35, 164,000.97 and 65,124.21 is: 89,872.12
Step by Step Solution
- Step 1: Write the proportion equation
118,840.35 : 164,000.97 = 65,124.21 : x - Step 2: Convert to fraction form
118,840.35/164,000.97 = 65,124.21/x - Step 3: Cross multiply
118,840.35x = 164,000.97 × 65,124.21 - Step 4: Simplify right side
118,840.35x = 10,680,433,764.23 - Step 5: Solve for x
x = 10,680,433,764.23/118,840.35 - Step 6: Final answer
x = 89,872.12
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.