Finding the Fourth Proportional to 125,980.65, 173,853.53 and 68,619.80
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Solution
The fourth proportional to 125,980.65, 173,853.53 and 68,619.80 is: 94,695.45
Step by Step Solution
- Step 1: Write the proportion equation
125,980.65 : 173,853.53 = 68,619.80 : x - Step 2: Convert to fraction form
125,980.65/173,853.53 = 68,619.80/x - Step 3: Cross multiply
125,980.65x = 173,853.53 × 68,619.80 - Step 4: Simplify right side
125,980.65x = 11,929,793,760.18 - Step 5: Solve for x
x = 11,929,793,760.18/125,980.65 - Step 6: Final answer
x = 94,695.45
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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.