Finding the Fourth Proportional to 112,043.36, 167,670.14 and 69,943.20
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Solution
The fourth proportional to 112,043.36, 167,670.14 and 69,943.20 is: 104,668.28
Step by Step Solution
- Step 1: Write the proportion equation
112,043.36 : 167,670.14 = 69,943.20 : x - Step 2: Convert to fraction form
112,043.36/167,670.14 = 69,943.20/x - Step 3: Cross multiply
112,043.36x = 167,670.14 × 69,943.20 - Step 4: Simplify right side
112,043.36x = 11,727,386,136.05 - Step 5: Solve for x
x = 11,727,386,136.05/112,043.36 - Step 6: Final answer
x = 104,668.28
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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.