Finding the Fourth Proportional to 113,313.23, 170,644.39 and 98,698.67
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Solution
The fourth proportional to 113,313.23, 170,644.39 and 98,698.67 is: 148,635.55
Step by Step Solution
- Step 1: Write the proportion equation
113,313.23 : 170,644.39 = 98,698.67 : x - Step 2: Convert to fraction form
113,313.23/170,644.39 = 98,698.67/x - Step 3: Cross multiply
113,313.23x = 170,644.39 × 98,698.67 - Step 4: Simplify right side
113,313.23x = 16,842,374,335.96 - Step 5: Solve for x
x = 16,842,374,335.96/113,313.23 - Step 6: Final answer
x = 148,635.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.