Finding the Fourth Proportional to 87,933.99, 121,254.33 and 86,088.81
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Solution
The fourth proportional to 87,933.99, 121,254.33 and 86,088.81 is: 118,709.97
Step by Step Solution
- Step 1: Write the proportion equation
87,933.99 : 121,254.33 = 86,088.81 : x - Step 2: Convert to fraction form
87,933.99/121,254.33 = 86,088.81/x - Step 3: Cross multiply
87,933.99x = 121,254.33 × 86,088.81 - Step 4: Simplify right side
87,933.99x = 10,438,640,977.05 - Step 5: Solve for x
x = 10,438,640,977.05/87,933.99 - Step 6: Final answer
x = 118,709.97
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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.