Finding the Fourth Proportional to 92,176.19, 138,135.68 and 69,668.31
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Solution
The fourth proportional to 92,176.19, 138,135.68 and 69,668.31 is: 104,405.26
Step by Step Solution
- Step 1: Write the proportion equation
92,176.19 : 138,135.68 = 69,668.31 : x - Step 2: Convert to fraction form
92,176.19/138,135.68 = 69,668.31/x - Step 3: Cross multiply
92,176.19x = 138,135.68 × 69,668.31 - Step 4: Simplify right side
92,176.19x = 9,623,679,376.30 - Step 5: Solve for x
x = 9,623,679,376.30/92,176.19 - Step 6: Final answer
x = 104,405.26
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1.5x scale
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.