Finding the Fourth Proportional to 125,106.80, 172,649.88 and 68,518.17
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Solution
The fourth proportional to 125,106.80, 172,649.88 and 68,518.17 is: 94,556.45
Step by Step Solution
- Step 1: Write the proportion equation
125,106.80 : 172,649.88 = 68,518.17 : x - Step 2: Convert to fraction form
125,106.80/172,649.88 = 68,518.17/x - Step 3: Cross multiply
125,106.80x = 172,649.88 × 68,518.17 - Step 4: Simplify right side
125,106.80x = 11,829,653,828.32 - Step 5: Solve for x
x = 11,829,653,828.32/125,106.80 - Step 6: Final answer
x = 94,556.45
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1.5x scale
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.