Finding the Fourth Proportional to 139,568.98, 209,322.02 and 39,726.96
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Solution
The fourth proportional to 139,568.98, 209,322.02 and 39,726.96 is: 59,581.49
Step by Step Solution
- Step 1: Write the proportion equation
139,568.98 : 209,322.02 = 39,726.96 : x - Step 2: Convert to fraction form
139,568.98/209,322.02 = 39,726.96/x - Step 3: Cross multiply
139,568.98x = 209,322.02 × 39,726.96 - Step 4: Simplify right side
139,568.98x = 8,315,727,515.66 - Step 5: Solve for x
x = 8,315,727,515.66/139,568.98 - Step 6: Final answer
x = 59,581.49
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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.