Finding the Fourth Proportional to 173,930.80, 260,929.68 and 74,089.12
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Solution
The fourth proportional to 173,930.80, 260,929.68 and 74,089.12 is: 111,147.94
Step by Step Solution
- Step 1: Write the proportion equation
173,930.80 : 260,929.68 = 74,089.12 : x - Step 2: Convert to fraction form
173,930.80/260,929.68 = 74,089.12/x - Step 3: Cross multiply
173,930.80x = 260,929.68 × 74,089.12 - Step 4: Simplify right side
173,930.80x = 19,332,050,373.08 - Step 5: Solve for x
x = 19,332,050,373.08/173,930.80 - Step 6: Final answer
x = 111,147.94
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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.