Finding the Fourth Proportional to 122,821.47, 169,491.63 and 69,106.44
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Solution
The fourth proportional to 122,821.47, 169,491.63 and 69,106.44 is: 95,365.76
Step by Step Solution
- Step 1: Write the proportion equation
122,821.47 : 169,491.63 = 69,106.44 : x - Step 2: Convert to fraction form
122,821.47/169,491.63 = 69,106.44/x - Step 3: Cross multiply
122,821.47x = 169,491.63 × 69,106.44 - Step 4: Simplify right side
122,821.47x = 11,712,963,159.10 - Step 5: Solve for x
x = 11,712,963,159.10/122,821.47 - Step 6: Final answer
x = 95,365.76
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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.