Finding the Fourth Proportional to 192,866.98, 266,153.46 and 107,987.08
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Solution
The fourth proportional to 192,866.98, 266,153.46 and 107,987.08 is: 149,020.51
Step by Step Solution
- Step 1: Write the proportion equation
192,866.98 : 266,153.46 = 107,987.08 : x - Step 2: Convert to fraction form
192,866.98/266,153.46 = 107,987.08/x - Step 3: Cross multiply
192,866.98x = 266,153.46 × 107,987.08 - Step 4: Simplify right side
192,866.98x = 28,741,134,977.30 - Step 5: Solve for x
x = 28,741,134,977.30/192,866.98 - Step 6: Final answer
x = 149,020.51
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1.5x scale
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.