Finding the Fourth Proportional to 124,894.78, 172,356.15 and 68,304.94
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Solution
The fourth proportional to 124,894.78, 172,356.15 and 68,304.94 is: 94,261.56
Step by Step Solution
- Step 1: Write the proportion equation
124,894.78 : 172,356.15 = 68,304.94 : x - Step 2: Convert to fraction form
124,894.78/172,356.15 = 68,304.94/x - Step 3: Cross multiply
124,894.78x = 172,356.15 × 68,304.94 - Step 4: Simplify right side
124,894.78x = 11,772,776,309.63 - Step 5: Solve for x
x = 11,772,776,309.63/124,894.78 - Step 6: Final answer
x = 94,261.56
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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.