Finding the Fourth Proportional to 137,420.53, 205,894.06 and 107,423.09
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Solution
The fourth proportional to 137,420.53, 205,894.06 and 107,423.09 is: 160,949.58
Step by Step Solution
- Step 1: Write the proportion equation
137,420.53 : 205,894.06 = 107,423.09 : x - Step 2: Convert to fraction form
137,420.53/205,894.06 = 107,423.09/x - Step 3: Cross multiply
137,420.53x = 205,894.06 × 107,423.09 - Step 4: Simplify right side
137,420.53x = 22,117,776,137.85 - Step 5: Solve for x
x = 22,117,776,137.85/137,420.53 - Step 6: Final answer
x = 160,949.58
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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.