Finding the Fourth Proportional to 125,128.44, 172,675.53 and 71,444.88
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Solution
The fourth proportional to 125,128.44, 172,675.53 and 71,444.88 is: 98,592.95
Step by Step Solution
- Step 1: Write the proportion equation
125,128.44 : 172,675.53 = 71,444.88 : x - Step 2: Convert to fraction form
125,128.44/172,675.53 = 71,444.88/x - Step 3: Cross multiply
125,128.44x = 172,675.53 × 71,444.88 - Step 4: Simplify right side
125,128.44x = 12,336,782,519.79 - Step 5: Solve for x
x = 12,336,782,519.79/125,128.44 - Step 6: Final answer
x = 98,592.95
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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.