Finding the Fourth Proportional to 142,245.60, 196,209.24 and 91,204.68
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Solution
The fourth proportional to 142,245.60, 196,209.24 and 91,204.68 is: 125,804.95
Step by Step Solution
- Step 1: Write the proportion equation
142,245.60 : 196,209.24 = 91,204.68 : x - Step 2: Convert to fraction form
142,245.60/196,209.24 = 91,204.68/x - Step 3: Cross multiply
142,245.60x = 196,209.24 × 91,204.68 - Step 4: Simplify right side
142,245.60x = 17,895,200,947.24 - Step 5: Solve for x
x = 17,895,200,947.24/142,245.60 - Step 6: Final answer
x = 125,804.95
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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.