Finding the Fourth Proportional to 141,693.36, 195,420.60 and 103,409.88
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Solution
The fourth proportional to 141,693.36, 195,420.60 and 103,409.88 is: 142,620.80
Step by Step Solution
- Step 1: Write the proportion equation
141,693.36 : 195,420.60 = 103,409.88 : x - Step 2: Convert to fraction form
141,693.36/195,420.60 = 103,409.88/x - Step 3: Cross multiply
141,693.36x = 195,420.60 × 103,409.88 - Step 4: Simplify right side
141,693.36x = 20,208,420,795.53 - Step 5: Solve for x
x = 20,208,420,795.53/141,693.36 - Step 6: Final answer
x = 142,620.80
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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.