Finding the Fourth Proportional to 120,865.13, 181,246.44 and 57,612.08
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Solution
The fourth proportional to 120,865.13, 181,246.44 and 57,612.08 is: 86,393.69
Step by Step Solution
- Step 1: Write the proportion equation
120,865.13 : 181,246.44 = 57,612.08 : x - Step 2: Convert to fraction form
120,865.13/181,246.44 = 57,612.08/x - Step 3: Cross multiply
120,865.13x = 181,246.44 × 57,612.08 - Step 4: Simplify right side
120,865.13x = 10,441,984,256.97 - Step 5: Solve for x
x = 10,441,984,256.97/120,865.13 - Step 6: Final answer
x = 86,393.69
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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.