Finding the Fourth Proportional to 125,351.94, 172,985.71 and 68,763.32
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Solution
The fourth proportional to 125,351.94, 172,985.71 and 68,763.32 is: 94,893.39
Step by Step Solution
- Step 1: Write the proportion equation
125,351.94 : 172,985.71 = 68,763.32 : x - Step 2: Convert to fraction form
125,351.94/172,985.71 = 68,763.32/x - Step 3: Cross multiply
125,351.94x = 172,985.71 × 68,763.32 - Step 4: Simplify right side
125,351.94x = 11,895,070,867.23 - Step 5: Solve for x
x = 11,895,070,867.23/125,351.94 - Step 6: Final answer
x = 94,893.39
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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.