Finding the Fourth Proportional to 122,686.97, 169,303.07 and 68,970.84
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Solution
The fourth proportional to 122,686.97, 169,303.07 and 68,970.84 is: 95,176.98
Step by Step Solution
- Step 1: Write the proportion equation
122,686.97 : 169,303.07 = 68,970.84 : x - Step 2: Convert to fraction form
122,686.97/169,303.07 = 68,970.84/x - Step 3: Cross multiply
122,686.97x = 169,303.07 × 68,970.84 - Step 4: Simplify right side
122,686.97x = 11,676,974,607.62 - Step 5: Solve for x
x = 11,676,974,607.62/122,686.97 - Step 6: Final answer
x = 95,176.98
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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.