Finding the Fourth Proportional to 103,462.98, 155,246.42 and 47,298.09
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Solution
The fourth proportional to 103,462.98, 155,246.42 and 47,298.09 is: 70,970.88
Step by Step Solution
- Step 1: Write the proportion equation
103,462.98 : 155,246.42 = 47,298.09 : x - Step 2: Convert to fraction form
103,462.98/155,246.42 = 47,298.09/x - Step 3: Cross multiply
103,462.98x = 155,246.42 × 47,298.09 - Step 4: Simplify right side
103,462.98x = 7,342,858,891.50 - Step 5: Solve for x
x = 7,342,858,891.50/103,462.98 - Step 6: Final answer
x = 70,970.88
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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.