Finding the Fourth Proportional to 125,971.20, 171,460.80 and 125,971.20
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Solution
The fourth proportional to 125,971.20, 171,460.80 and 125,971.20 is: 171,460.80
Step by Step Solution
- Step 1: Write the proportion equation
125,971.20 : 171,460.80 = 125,971.20 : x - Step 2: Convert to fraction form
125,971.20/171,460.80 = 125,971.20/x - Step 3: Cross multiply
125,971.20x = 171,460.80 × 125,971.20 - Step 4: Simplify right side
125,971.20x = 21,599,122,728.96 - Step 5: Solve for x
x = 21,599,122,728.96/125,971.20 - Step 6: Final answer
x = 171,460.80
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Why These Related Problems?
These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.