Finding the Fourth Proportional to 97,920.38, 146,838.95 and 34,756.38
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Solution
The fourth proportional to 97,920.38, 146,838.95 and 34,756.38 is: 52,119.80
Step by Step Solution
- Step 1: Write the proportion equation
97,920.38 : 146,838.95 = 34,756.38 : x - Step 2: Convert to fraction form
97,920.38/146,838.95 = 34,756.38/x - Step 3: Cross multiply
97,920.38x = 146,838.95 × 34,756.38 - Step 4: Simplify right side
97,920.38x = 5,103,590,171.22 - Step 5: Solve for x
x = 5,103,590,171.22/97,920.38 - Step 6: Final answer
x = 52,119.80
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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.