Finding the Fourth Proportional to 150,781.96, 208,083.99 and 87,119.75
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Solution
The fourth proportional to 150,781.96, 208,083.99 and 87,119.75 is: 120,228.08
Step by Step Solution
- Step 1: Write the proportion equation
150,781.96 : 208,083.99 = 87,119.75 : x - Step 2: Convert to fraction form
150,781.96/208,083.99 = 87,119.75/x - Step 3: Cross multiply
150,781.96x = 208,083.99 × 87,119.75 - Step 4: Simplify right side
150,781.96x = 18,128,225,544.66 - Step 5: Solve for x
x = 18,128,225,544.66/150,781.96 - Step 6: Final answer
x = 120,228.08
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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.