Finding the Fourth Proportional to 149,047.98, 205,771.23 and 98,815.02
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Solution
The fourth proportional to 149,047.98, 205,771.23 and 98,815.02 is: 136,421.09
Step by Step Solution
- Step 1: Write the proportion equation
149,047.98 : 205,771.23 = 98,815.02 : x - Step 2: Convert to fraction form
149,047.98/205,771.23 = 98,815.02/x - Step 3: Cross multiply
149,047.98x = 205,771.23 × 98,815.02 - Step 4: Simplify right side
149,047.98x = 20,333,288,207.87 - Step 5: Solve for x
x = 20,333,288,207.87/149,047.98 - Step 6: Final answer
x = 136,421.09
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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.