Finding the Fourth Proportional to 143,167.62, 197,480.44 and 87,952.74
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Solution
The fourth proportional to 143,167.62, 197,480.44 and 87,952.74 is: 121,318.95
Step by Step Solution
- Step 1: Write the proportion equation
143,167.62 : 197,480.44 = 87,952.74 : x - Step 2: Convert to fraction form
143,167.62/197,480.44 = 87,952.74/x - Step 3: Cross multiply
143,167.62x = 197,480.44 × 87,952.74 - Step 4: Simplify right side
143,167.62x = 17,368,945,794.41 - Step 5: Solve for x
x = 17,368,945,794.41/143,167.62 - Step 6: Final answer
x = 121,318.95
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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.