Finding the Fourth Proportional to 98,211.13, 147,316.69 and 28,090.44
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Solution
The fourth proportional to 98,211.13, 147,316.69 and 28,090.44 is: 42,135.66
Step by Step Solution
- Step 1: Write the proportion equation
98,211.13 : 147,316.69 = 28,090.44 : x - Step 2: Convert to fraction form
98,211.13/147,316.69 = 28,090.44/x - Step 3: Cross multiply
98,211.13x = 147,316.69 × 28,090.44 - Step 4: Simplify right side
98,211.13x = 4,138,190,641.44 - Step 5: Solve for x
x = 4,138,190,641.44/98,211.13 - Step 6: Final answer
x = 42,135.66
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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.