Finding the Fourth Proportional to 159,797.99, 220,438.18 and 129,617.39
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Solution
The fourth proportional to 159,797.99, 220,438.18 and 129,617.39 is: 178,804.64
Step by Step Solution
- Step 1: Write the proportion equation
159,797.99 : 220,438.18 = 129,617.39 : x - Step 2: Convert to fraction form
159,797.99/220,438.18 = 129,617.39/x - Step 3: Cross multiply
159,797.99x = 220,438.18 × 129,617.39 - Step 4: Simplify right side
159,797.99x = 28,572,621,547.95 - Step 5: Solve for x
x = 28,572,621,547.95/159,797.99 - Step 6: Final answer
x = 178,804.64
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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.