Finding the Fourth Proportional to 124,785.99, 172,204.47 and 68,197.32
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Solution
The fourth proportional to 124,785.99, 172,204.47 and 68,197.32 is: 94,112.19
Step by Step Solution
- Step 1: Write the proportion equation
124,785.99 : 172,204.47 = 68,197.32 : x - Step 2: Convert to fraction form
124,785.99/172,204.47 = 68,197.32/x - Step 3: Cross multiply
124,785.99x = 172,204.47 × 68,197.32 - Step 4: Simplify right side
124,785.99x = 11,743,883,346.02 - Step 5: Solve for x
x = 11,743,883,346.02/124,785.99 - Step 6: Final answer
x = 94,112.19
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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.