Finding the Fourth Proportional to 102,216.13, 153,258.58 and 67,114.78
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Solution
The fourth proportional to 102,216.13, 153,258.58 and 67,114.78 is: 100,629.09
Step by Step Solution
- Step 1: Write the proportion equation
102,216.13 : 153,258.58 = 67,114.78 : x - Step 2: Convert to fraction form
102,216.13/153,258.58 = 67,114.78/x - Step 3: Cross multiply
102,216.13x = 153,258.58 × 67,114.78 - Step 4: Simplify right side
102,216.13x = 10,285,915,580.56 - Step 5: Solve for x
x = 10,285,915,580.56/102,216.13 - Step 6: Final answer
x = 100,629.09
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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.