Finding the Fourth Proportional to 115,311.99, 159,130.71 and 64,328.01
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Solution
The fourth proportional to 115,311.99, 159,130.71 and 64,328.01 is: 88,772.75
Step by Step Solution
- Step 1: Write the proportion equation
115,311.99 : 159,130.71 = 64,328.01 : x - Step 2: Convert to fraction form
115,311.99/159,130.71 = 64,328.01/x - Step 3: Cross multiply
115,311.99x = 159,130.71 × 64,328.01 - Step 4: Simplify right side
115,311.99x = 10,236,561,904.19 - Step 5: Solve for x
x = 10,236,561,904.19/115,311.99 - Step 6: Final answer
x = 88,772.75
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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.