Finding the Fourth Proportional to 160,515.06, 221,517.96 and 87,923.06
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Solution
The fourth proportional to 160,515.06, 221,517.96 and 87,923.06 is: 121,337.75
Step by Step Solution
- Step 1: Write the proportion equation
160,515.06 : 221,517.96 = 87,923.06 : x - Step 2: Convert to fraction form
160,515.06/221,517.96 = 87,923.06/x - Step 3: Cross multiply
160,515.06x = 221,517.96 × 87,923.06 - Step 4: Simplify right side
160,515.06x = 19,476,536,888.16 - Step 5: Solve for x
x = 19,476,536,888.16/160,515.06 - Step 6: Final answer
x = 121,337.75
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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.