Finding the Fourth Proportional to 125,258.88, 187,623.36 and 85,630.08
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Solution
The fourth proportional to 125,258.88, 187,623.36 and 85,630.08 is: 128,263.99
Step by Step Solution
- Step 1: Write the proportion equation
125,258.88 : 187,623.36 = 85,630.08 : x - Step 2: Convert to fraction form
125,258.88/187,623.36 = 85,630.08/x - Step 3: Cross multiply
125,258.88x = 187,623.36 × 85,630.08 - Step 4: Simplify right side
125,258.88x = 16,066,203,326.67 - Step 5: Solve for x
x = 16,066,203,326.67/125,258.88 - Step 6: Final answer
x = 128,263.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.