Finding the Fourth Proportional to 124,820.25, 172,252.56 and 68,231.63
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Solution
The fourth proportional to 124,820.25, 172,252.56 and 68,231.63 is: 94,159.98
Step by Step Solution
- Step 1: Write the proportion equation
124,820.25 : 172,252.56 = 68,231.63 : x - Step 2: Convert to fraction form
124,820.25/172,252.56 = 68,231.63/x - Step 3: Cross multiply
124,820.25x = 172,252.56 × 68,231.63 - Step 4: Simplify right side
124,820.25x = 11,753,072,079.21 - Step 5: Solve for x
x = 11,753,072,079.21/124,820.25 - Step 6: Final answer
x = 94,159.98
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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.