Finding the Fourth Proportional to 124,804.28, 172,230.00 and 68,215.66
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Solution
The fourth proportional to 124,804.28, 172,230.00 and 68,215.66 is: 94,137.65
Step by Step Solution
- Step 1: Write the proportion equation
124,804.28 : 172,230.00 = 68,215.66 : x - Step 2: Convert to fraction form
124,804.28/172,230.00 = 68,215.66/x - Step 3: Cross multiply
124,804.28x = 172,230.00 × 68,215.66 - Step 4: Simplify right side
124,804.28x = 11,748,782,435.42 - Step 5: Solve for x
x = 11,748,782,435.42/124,804.28 - Step 6: Final answer
x = 94,137.65
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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.