Finding the Fourth Proportional to 102,306.05, 153,403.48 and 54,977.55
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Solution
The fourth proportional to 102,306.05, 153,403.48 and 54,977.55 is: 82,436.45
Step by Step Solution
- Step 1: Write the proportion equation
102,306.05 : 153,403.48 = 54,977.55 : x - Step 2: Convert to fraction form
102,306.05/153,403.48 = 54,977.55/x - Step 3: Cross multiply
102,306.05x = 153,403.48 × 54,977.55 - Step 4: Simplify right side
102,306.05x = 8,433,747,491.87 - Step 5: Solve for x
x = 8,433,747,491.87/102,306.05 - Step 6: Final answer
x = 82,436.45
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1.5x scale
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.