Finding the Fourth Proportional to 107,988.13, 161,985.99 and 29,104.24
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Solution
The fourth proportional to 107,988.13, 161,985.99 and 29,104.24 is: 43,657.38
Step by Step Solution
- Step 1: Write the proportion equation
107,988.13 : 161,985.99 = 29,104.24 : x - Step 2: Convert to fraction form
107,988.13/161,985.99 = 29,104.24/x - Step 3: Cross multiply
107,988.13x = 161,985.99 × 29,104.24 - Step 4: Simplify right side
107,988.13x = 4,714,479,129.60 - Step 5: Solve for x
x = 4,714,479,129.60/107,988.13 - Step 6: Final answer
x = 43,657.38
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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.