Finding the Fourth Proportional to 115,243.58, 158,674.25 and 97,982.00
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Solution
The fourth proportional to 115,243.58, 158,674.25 and 97,982.00 is: 134,907.47
Step by Step Solution
- Step 1: Write the proportion equation
115,243.58 : 158,674.25 = 97,982.00 : x - Step 2: Convert to fraction form
115,243.58/158,674.25 = 97,982.00/x - Step 3: Cross multiply
115,243.58x = 158,674.25 × 97,982.00 - Step 4: Simplify right side
115,243.58x = 15,547,219,080.22 - Step 5: Solve for x
x = 15,547,219,080.22/115,243.58 - Step 6: Final answer
x = 134,907.47
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1.5x scale
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.