Finding the Fourth Proportional to 113,802.26, 157,023.68 and 65,394.84
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Solution
The fourth proportional to 113,802.26, 157,023.68 and 65,394.84 is: 90,231.41
Step by Step Solution
- Step 1: Write the proportion equation
113,802.26 : 157,023.68 = 65,394.84 : x - Step 2: Convert to fraction form
113,802.26/157,023.68 = 65,394.84/x - Step 3: Cross multiply
113,802.26x = 157,023.68 × 65,394.84 - Step 4: Simplify right side
113,802.26x = 10,268,538,429.81 - Step 5: Solve for x
x = 10,268,538,429.81/113,802.26 - Step 6: Final answer
x = 90,231.41
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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.