Finding the Fourth Proportional to 107,430.21, 161,145.36 and 40,854.96
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Solution
The fourth proportional to 107,430.21, 161,145.36 and 40,854.96 is: 61,282.46
Step by Step Solution
- Step 1: Write the proportion equation
107,430.21 : 161,145.36 = 40,854.96 : x - Step 2: Convert to fraction form
107,430.21/161,145.36 = 40,854.96/x - Step 3: Cross multiply
107,430.21x = 161,145.36 × 40,854.96 - Step 4: Simplify right side
107,430.21x = 6,583,587,236.99 - Step 5: Solve for x
x = 6,583,587,236.99/107,430.21 - Step 6: Final answer
x = 61,282.46
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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.