Finding the Fourth Proportional to 101,955.44, 140,766.55 and 63,769.05
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Solution
The fourth proportional to 101,955.44, 140,766.55 and 63,769.05 is: 88,043.85
Step by Step Solution
- Step 1: Write the proportion equation
101,955.44 : 140,766.55 = 63,769.05 : x - Step 2: Convert to fraction form
101,955.44/140,766.55 = 63,769.05/x - Step 3: Cross multiply
101,955.44x = 140,766.55 × 63,769.05 - Step 4: Simplify right side
101,955.44x = 8,976,549,165.28 - Step 5: Solve for x
x = 8,976,549,165.28/101,955.44 - Step 6: Final answer
x = 88,043.85
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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.