Finding the Fourth Proportional to 122,756.21, 169,389.77 and 69,040.07
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Solution
The fourth proportional to 122,756.21, 169,389.77 and 69,040.07 is: 95,267.53
Step by Step Solution
- Step 1: Write the proportion equation
122,756.21 : 169,389.77 = 69,040.07 : x - Step 2: Convert to fraction form
122,756.21/169,389.77 = 69,040.07/x - Step 3: Cross multiply
122,756.21x = 169,389.77 × 69,040.07 - Step 4: Simplify right side
122,756.21x = 11,694,680,385.93 - Step 5: Solve for x
x = 11,694,680,385.93/122,756.21 - Step 6: Final answer
x = 95,267.53
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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.