Finding the Fourth Proportional to 125,224.12, 172,823.52 and 71,516.80
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Solution
The fourth proportional to 125,224.12, 172,823.52 and 71,516.80 is: 98,701.31
Step by Step Solution
- Step 1: Write the proportion equation
125,224.12 : 172,823.52 = 71,516.80 : x - Step 2: Convert to fraction form
125,224.12/172,823.52 = 71,516.80/x - Step 3: Cross multiply
125,224.12x = 172,823.52 × 71,516.80 - Step 4: Simplify right side
125,224.12x = 12,359,785,115.14 - Step 5: Solve for x
x = 12,359,785,115.14/125,224.12 - Step 6: Final answer
x = 98,701.31
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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.