Finding the Fourth Proportional to 160,430.67, 221,406.62 and 91,521.65
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Solution
The fourth proportional to 160,430.67, 221,406.62 and 91,521.65 is: 126,306.89
Step by Step Solution
- Step 1: Write the proportion equation
160,430.67 : 221,406.62 = 91,521.65 : x - Step 2: Convert to fraction form
160,430.67/221,406.62 = 91,521.65/x - Step 3: Cross multiply
160,430.67x = 221,406.62 × 91,521.65 - Step 4: Simplify right side
160,430.67x = 20,263,498,172.20 - Step 5: Solve for x
x = 20,263,498,172.20/160,430.67 - Step 6: Final answer
x = 126,306.89
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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.