Finding the Fourth Proportional to 122,993.19, 169,711.86 and 69,274.80
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Solution
The fourth proportional to 122,993.19, 169,711.86 and 69,274.80 is: 95,588.67
Step by Step Solution
- Step 1: Write the proportion equation
122,993.19 : 169,711.86 = 69,274.80 : x - Step 2: Convert to fraction form
122,993.19/169,711.86 = 69,274.80/x - Step 3: Cross multiply
122,993.19x = 169,711.86 × 69,274.80 - Step 4: Simplify right side
122,993.19x = 11,756,755,159.13 - Step 5: Solve for x
x = 11,756,755,159.13/122,993.19 - Step 6: Final answer
x = 95,588.67
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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.