Finding the Fourth Proportional to 143,668.44, 198,261.36 and 83,237.79
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Solution
The fourth proportional to 143,668.44, 198,261.36 and 83,237.79 is: 114,867.52
Step by Step Solution
- Step 1: Write the proportion equation
143,668.44 : 198,261.36 = 83,237.79 : x - Step 2: Convert to fraction form
143,668.44/198,261.36 = 83,237.79/x - Step 3: Cross multiply
143,668.44x = 198,261.36 × 83,237.79 - Step 4: Simplify right side
143,668.44x = 16,502,837,448.79 - Step 5: Solve for x
x = 16,502,837,448.79/143,668.44 - Step 6: Final answer
x = 114,867.52
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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.