Finding the Fourth Proportional to 122,515.03, 169,070.07 and 68,804.74
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Solution
The fourth proportional to 122,515.03, 169,070.07 and 68,804.74 is: 94,950.16
Step by Step Solution
- Step 1: Write the proportion equation
122,515.03 : 169,070.07 = 68,804.74 : x - Step 2: Convert to fraction form
122,515.03/169,070.07 = 68,804.74/x - Step 3: Cross multiply
122,515.03x = 169,070.07 × 68,804.74 - Step 4: Simplify right side
122,515.03x = 11,632,822,208.13 - Step 5: Solve for x
x = 11,632,822,208.13/122,515.03 - Step 6: Final answer
x = 94,950.16
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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.