Finding the Fourth Proportional to 103,508.60, 155,277.68 and 36,934.70
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Solution
The fourth proportional to 103,508.60, 155,277.68 and 36,934.70 is: 55,407.32
Step by Step Solution
- Step 1: Write the proportion equation
103,508.60 : 155,277.68 = 36,934.70 : x - Step 2: Convert to fraction form
103,508.60/155,277.68 = 36,934.70/x - Step 3: Cross multiply
103,508.60x = 155,277.68 × 36,934.70 - Step 4: Simplify right side
103,508.60x = 5,735,133,566.43 - Step 5: Solve for x
x = 5,735,133,566.43/103,508.60 - Step 6: Final answer
x = 55,407.32
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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.