Finding the Fourth Proportional to 125,108.04, 172,642.68 and 68,518.20
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Solution
The fourth proportional to 125,108.04, 172,642.68 and 68,518.20 is: 94,551.60
Step by Step Solution
- Step 1: Write the proportion equation
125,108.04 : 172,642.68 = 68,518.20 : x - Step 2: Convert to fraction form
125,108.04/172,642.68 = 68,518.20/x - Step 3: Cross multiply
125,108.04x = 172,642.68 × 68,518.20 - Step 4: Simplify right side
125,108.04x = 11,829,165,676.78 - Step 5: Solve for x
x = 11,829,165,676.78/125,108.04 - Step 6: Final answer
x = 94,551.60
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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.