Finding the Fourth Proportional to 128,488.07, 192,745.01 and 44,237.09
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Solution
The fourth proportional to 128,488.07, 192,745.01 and 44,237.09 is: 66,360.07
Step by Step Solution
- Step 1: Write the proportion equation
128,488.07 : 192,745.01 = 44,237.09 : x - Step 2: Convert to fraction form
128,488.07/192,745.01 = 44,237.09/x - Step 3: Cross multiply
128,488.07x = 192,745.01 × 44,237.09 - Step 4: Simplify right side
128,488.07x = 8,526,477,501.29 - Step 5: Solve for x
x = 8,526,477,501.29/128,488.07 - Step 6: Final answer
x = 66,360.07
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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.