Finding the Fourth Proportional to 160,638.24, 221,659.80 and 89,014.80
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Solution
The fourth proportional to 160,638.24, 221,659.80 and 89,014.80 is: 122,828.80
Step by Step Solution
- Step 1: Write the proportion equation
160,638.24 : 221,659.80 = 89,014.80 : x - Step 2: Convert to fraction form
160,638.24/221,659.80 = 89,014.80/x - Step 3: Cross multiply
160,638.24x = 221,659.80 × 89,014.80 - Step 4: Simplify right side
160,638.24x = 19,731,002,765.04 - Step 5: Solve for x
x = 19,731,002,765.04/160,638.24 - Step 6: Final answer
x = 122,828.80
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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.