Finding the Fourth Proportional to 138,320.18, 190,652.38 and 97,982.18
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Solution
The fourth proportional to 138,320.18, 190,652.38 and 97,982.18 is: 135,052.86
Step by Step Solution
- Step 1: Write the proportion equation
138,320.18 : 190,652.38 = 97,982.18 : x - Step 2: Convert to fraction form
138,320.18/190,652.38 = 97,982.18/x - Step 3: Cross multiply
138,320.18x = 190,652.38 × 97,982.18 - Step 4: Simplify right side
138,320.18x = 18,680,535,814.59 - Step 5: Solve for x
x = 18,680,535,814.59/138,320.18 - Step 6: Final answer
x = 135,052.86
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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.