Finding the Fourth Proportional to 87,203.79, 130,669.61 and 69,668.91
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Solution
The fourth proportional to 87,203.79, 130,669.61 and 69,668.91 is: 104,394.65
Step by Step Solution
- Step 1: Write the proportion equation
87,203.79 : 130,669.61 = 69,668.91 : x - Step 2: Convert to fraction form
87,203.79/130,669.61 = 69,668.91/x - Step 3: Cross multiply
87,203.79x = 130,669.61 × 69,668.91 - Step 4: Simplify right side
87,203.79x = 9,103,608,950.48 - Step 5: Solve for x
x = 9,103,608,950.48/87,203.79 - Step 6: Final answer
x = 104,394.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.