Finding the Fourth Proportional to 120,977.28, 181,489.68 and 42,094.08
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Solution
The fourth proportional to 120,977.28, 181,489.68 and 42,094.08 is: 63,149.39
Step by Step Solution
- Step 1: Write the proportion equation
120,977.28 : 181,489.68 = 42,094.08 : x - Step 2: Convert to fraction form
120,977.28/181,489.68 = 42,094.08/x - Step 3: Cross multiply
120,977.28x = 181,489.68 × 42,094.08 - Step 4: Simplify right side
120,977.28x = 7,639,641,109.09 - Step 5: Solve for x
x = 7,639,641,109.09/120,977.28 - Step 6: Final answer
x = 63,149.39
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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.