Finding the Fourth Proportional to 125,490.24, 173,176.80 and 68,905.20
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Solution
The fourth proportional to 125,490.24, 173,176.80 and 68,905.20 is: 95,089.32
Step by Step Solution
- Step 1: Write the proportion equation
125,490.24 : 173,176.80 = 68,905.20 : x - Step 2: Convert to fraction form
125,490.24/173,176.80 = 68,905.20/x - Step 3: Cross multiply
125,490.24x = 173,176.80 × 68,905.20 - Step 4: Simplify right side
125,490.24x = 11,932,782,039.36 - Step 5: Solve for x
x = 11,932,782,039.36/125,490.24 - Step 6: Final answer
x = 95,089.32
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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.