Finding the Fourth Proportional to 103,691.20, 155,569.20 and 43,746.88
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Solution
The fourth proportional to 103,691.20, 155,569.20 and 43,746.88 is: 65,633.99
Step by Step Solution
- Step 1: Write the proportion equation
103,691.20 : 155,569.20 = 43,746.88 : x - Step 2: Convert to fraction form
103,691.20/155,569.20 = 43,746.88/x - Step 3: Cross multiply
103,691.20x = 155,569.20 × 43,746.88 - Step 4: Simplify right side
103,691.20x = 6,805,667,124.10 - Step 5: Solve for x
x = 6,805,667,124.10/103,691.20 - Step 6: Final answer
x = 65,633.99
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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.