Finding the Fourth Proportional to 124,967.25, 172,454.81 and 68,378.63
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Solution
The fourth proportional to 124,967.25, 172,454.81 and 68,378.63 is: 94,362.50
Step by Step Solution
- Step 1: Write the proportion equation
124,967.25 : 172,454.81 = 68,378.63 : x - Step 2: Convert to fraction form
124,967.25/172,454.81 = 68,378.63/x - Step 3: Cross multiply
124,967.25x = 172,454.81 × 68,378.63 - Step 4: Simplify right side
124,967.25x = 11,792,222,440.54 - Step 5: Solve for x
x = 11,792,222,440.54/124,967.25 - Step 6: Final answer
x = 94,362.50
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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.