Finding the Fourth Proportional to 143,104.41, 197,474.19 and 79,437.18
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Solution
The fourth proportional to 143,104.41, 197,474.19 and 79,437.18 is: 109,617.82
Step by Step Solution
- Step 1: Write the proportion equation
143,104.41 : 197,474.19 = 79,437.18 : x - Step 2: Convert to fraction form
143,104.41/197,474.19 = 79,437.18/x - Step 3: Cross multiply
143,104.41x = 197,474.19 × 79,437.18 - Step 4: Simplify right side
143,104.41x = 15,686,792,776.38 - Step 5: Solve for x
x = 15,686,792,776.38/143,104.41 - Step 6: Final answer
x = 109,617.82
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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.