Finding the Fourth Proportional to 161,509.92, 222,901.56 and 97,882.80
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Solution
The fourth proportional to 161,509.92, 222,901.56 and 97,882.80 is: 135,089.09
Step by Step Solution
- Step 1: Write the proportion equation
161,509.92 : 222,901.56 = 97,882.80 : x - Step 2: Convert to fraction form
161,509.92/222,901.56 = 97,882.80/x - Step 3: Cross multiply
161,509.92x = 222,901.56 × 97,882.80 - Step 4: Simplify right side
161,509.92x = 21,818,228,817.17 - Step 5: Solve for x
x = 21,818,228,817.17/161,509.92 - Step 6: Final answer
x = 135,089.09
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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.