Finding the Fourth Proportional to 105,684.53, 158,534.28 and 42,504.99
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Solution
The fourth proportional to 105,684.53, 158,534.28 and 42,504.99 is: 63,760.50
Step by Step Solution
- Step 1: Write the proportion equation
105,684.53 : 158,534.28 = 42,504.99 : x - Step 2: Convert to fraction form
105,684.53/158,534.28 = 42,504.99/x - Step 3: Cross multiply
105,684.53x = 158,534.28 × 42,504.99 - Step 4: Simplify right side
105,684.53x = 6,738,497,986.06 - Step 5: Solve for x
x = 6,738,497,986.06/105,684.53 - Step 6: Final answer
x = 63,760.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.