Finding the Fourth Proportional to 125,108.76, 172,652.94 and 68,519.64
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Solution
The fourth proportional to 125,108.76, 172,652.94 and 68,519.64 is: 94,558.66
Step by Step Solution
- Step 1: Write the proportion equation
125,108.76 : 172,652.94 = 68,519.64 : x - Step 2: Convert to fraction form
125,108.76/172,652.94 = 68,519.64/x - Step 3: Cross multiply
125,108.76x = 172,652.94 × 68,519.64 - Step 4: Simplify right side
125,108.76x = 11,830,117,293.74 - Step 5: Solve for x
x = 11,830,117,293.74/125,108.76 - Step 6: Final answer
x = 94,558.66
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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.