Finding the Fourth Proportional to 125,258.40, 172,923.12 and 85,186.08
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Solution
The fourth proportional to 125,258.40, 172,923.12 and 85,186.08 is: 117,602.03
Step by Step Solution
- Step 1: Write the proportion equation
125,258.40 : 172,923.12 = 85,186.08 : x - Step 2: Convert to fraction form
125,258.40/172,923.12 = 85,186.08/x - Step 3: Cross multiply
125,258.40x = 172,923.12 × 85,186.08 - Step 4: Simplify right side
125,258.40x = 14,730,642,734.17 - Step 5: Solve for x
x = 14,730,642,734.17/125,258.40 - Step 6: Final answer
x = 117,602.03
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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.