Finding the Fourth Proportional to 139,237.14, 192,147.36 and 75,574.92
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Solution
The fourth proportional to 139,237.14, 192,147.36 and 75,574.92 is: 104,293.45
Step by Step Solution
- Step 1: Write the proportion equation
139,237.14 : 192,147.36 = 75,574.92 : x - Step 2: Convert to fraction form
139,237.14/192,147.36 = 75,574.92/x - Step 3: Cross multiply
139,237.14x = 192,147.36 × 75,574.92 - Step 4: Simplify right side
139,237.14x = 14,521,521,360.21 - Step 5: Solve for x
x = 14,521,521,360.21/139,237.14 - Step 6: Final answer
x = 104,293.45
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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.