Finding the Fourth Proportional to 122,686.70, 169,303.14 and 68,976.68
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Solution
The fourth proportional to 122,686.70, 169,303.14 and 68,976.68 is: 95,185.29
Step by Step Solution
- Step 1: Write the proportion equation
122,686.70 : 169,303.14 = 68,976.68 : x - Step 2: Convert to fraction form
122,686.70/169,303.14 = 68,976.68/x - Step 3: Cross multiply
122,686.70x = 169,303.14 × 68,976.68 - Step 4: Simplify right side
122,686.70x = 11,677,968,510.78 - Step 5: Solve for x
x = 11,677,968,510.78/122,686.70 - Step 6: Final answer
x = 95,185.29
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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.