Finding the Fourth Proportional to 122,369.20, 183,315.28 and 68,897.74
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Solution
The fourth proportional to 122,369.20, 183,315.28 and 68,897.74 is: 103,212.32
Step by Step Solution
- Step 1: Write the proportion equation
122,369.20 : 183,315.28 = 68,897.74 : x - Step 2: Convert to fraction form
122,369.20/183,315.28 = 68,897.74/x - Step 3: Cross multiply
122,369.20x = 183,315.28 × 68,897.74 - Step 4: Simplify right side
122,369.20x = 12,630,008,499.47 - Step 5: Solve for x
x = 12,630,008,499.47/122,369.20 - Step 6: Final answer
x = 103,212.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.