Finding the Fourth Proportional to 143,024.26, 197,409.74 and 97,720.54
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Solution
The fourth proportional to 143,024.26, 197,409.74 and 97,720.54 is: 134,879.12
Step by Step Solution
- Step 1: Write the proportion equation
143,024.26 : 197,409.74 = 97,720.54 : x - Step 2: Convert to fraction form
143,024.26/197,409.74 = 97,720.54/x - Step 3: Cross multiply
143,024.26x = 197,409.74 × 97,720.54 - Step 4: Simplify right side
143,024.26x = 19,290,986,394.06 - Step 5: Solve for x
x = 19,290,986,394.06/143,024.26 - Step 6: Final answer
x = 134,879.12
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.