Finding the Fourth Proportional to 143,587.43, 198,136.34 and 83,177.48
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Solution
The fourth proportional to 143,587.43, 198,136.34 and 83,177.48 is: 114,776.63
Step by Step Solution
- Step 1: Write the proportion equation
143,587.43 : 198,136.34 = 83,177.48 : x - Step 2: Convert to fraction form
143,587.43/198,136.34 = 83,177.48/x - Step 3: Cross multiply
143,587.43x = 198,136.34 × 83,177.48 - Step 4: Simplify right side
143,587.43x = 16,480,480,051.05 - Step 5: Solve for x
x = 16,480,480,051.05/143,587.43 - Step 6: Final answer
x = 114,776.63
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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.