Finding the Fourth Proportional to 114,029.75, 157,365.92 and 63,728.75
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Solution
The fourth proportional to 114,029.75, 157,365.92 and 63,728.75 is: 87,948.39
Step by Step Solution
- Step 1: Write the proportion equation
114,029.75 : 157,365.92 = 63,728.75 : x - Step 2: Convert to fraction form
114,029.75/157,365.92 = 63,728.75/x - Step 3: Cross multiply
114,029.75x = 157,365.92 × 63,728.75 - Step 4: Simplify right side
114,029.75x = 10,028,733,374.20 - Step 5: Solve for x
x = 10,028,733,374.20/114,029.75 - Step 6: Final answer
x = 87,948.39
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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.