Finding the Fourth Proportional to 159,998.02, 220,797.99 and 87,401.88
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Solution
The fourth proportional to 159,998.02, 220,797.99 and 87,401.88 is: 120,614.99
Step by Step Solution
- Step 1: Write the proportion equation
159,998.02 : 220,797.99 = 87,401.88 : x - Step 2: Convert to fraction form
159,998.02/220,797.99 = 87,401.88/x - Step 3: Cross multiply
159,998.02x = 220,797.99 × 87,401.88 - Step 4: Simplify right side
159,998.02x = 19,298,159,426.22 - Step 5: Solve for x
x = 19,298,159,426.22/159,998.02 - Step 6: Final answer
x = 120,614.99
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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.