Finding the Fourth Proportional to 121,101.75, 181,681.79 and 37,995.75
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Solution
The fourth proportional to 121,101.75, 181,681.79 and 37,995.75 is: 57,002.77
Step by Step Solution
- Step 1: Write the proportion equation
121,101.75 : 181,681.79 = 37,995.75 : x - Step 2: Convert to fraction form
121,101.75/181,681.79 = 37,995.75/x - Step 3: Cross multiply
121,101.75x = 181,681.79 × 37,995.75 - Step 4: Simplify right side
121,101.75x = 6,903,135,682.41 - Step 5: Solve for x
x = 6,903,135,682.41/121,101.75 - Step 6: Final answer
x = 57,002.77
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1.5x scale
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.