Finding the Fourth Proportional to 125,209.30, 172,783.08 and 68,619.46
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Solution
The fourth proportional to 125,209.30, 172,783.08 and 68,619.46 is: 94,691.70
Step by Step Solution
- Step 1: Write the proportion equation
125,209.30 : 172,783.08 = 68,619.46 : x - Step 2: Convert to fraction form
125,209.30/172,783.08 = 68,619.46/x - Step 3: Cross multiply
125,209.30x = 172,783.08 × 68,619.46 - Step 4: Simplify right side
125,209.30x = 11,856,281,646.74 - Step 5: Solve for x
x = 11,856,281,646.74/125,209.30 - Step 6: Final answer
x = 94,691.70
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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.