Finding the Fourth Proportional to 107,438.09, 161,101.45 and 56,864.53
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Solution
The fourth proportional to 107,438.09, 161,101.45 and 56,864.53 is: 85,267.31
Step by Step Solution
- Step 1: Write the proportion equation
107,438.09 : 161,101.45 = 56,864.53 : x - Step 2: Convert to fraction form
107,438.09/161,101.45 = 56,864.53/x - Step 3: Cross multiply
107,438.09x = 161,101.45 × 56,864.53 - Step 4: Simplify right side
107,438.09x = 9,160,957,146.74 - Step 5: Solve for x
x = 9,160,957,146.74/107,438.09 - Step 6: Final answer
x = 85,267.31
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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.