Finding the Fourth Proportional to 103,671.68, 155,484.96 and 40,471.46
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Solution
The fourth proportional to 103,671.68, 155,484.96 and 40,471.46 is: 60,698.38
Step by Step Solution
- Step 1: Write the proportion equation
103,671.68 : 155,484.96 = 40,471.46 : x - Step 2: Convert to fraction form
103,671.68/155,484.96 = 40,471.46/x - Step 3: Cross multiply
103,671.68x = 155,484.96 × 40,471.46 - Step 4: Simplify right side
103,671.68x = 6,292,703,339.24 - Step 5: Solve for x
x = 6,292,703,339.24/103,671.68 - Step 6: Final answer
x = 60,698.38
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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.