Finding the Fourth Proportional to 103,132.14, 154,698.35 and 28,252.95
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Solution
The fourth proportional to 103,132.14, 154,698.35 and 28,252.95 is: 42,379.46
Step by Step Solution
- Step 1: Write the proportion equation
103,132.14 : 154,698.35 = 28,252.95 : x - Step 2: Convert to fraction form
103,132.14/154,698.35 = 28,252.95/x - Step 3: Cross multiply
103,132.14x = 154,698.35 × 28,252.95 - Step 4: Simplify right side
103,132.14x = 4,370,684,747.63 - Step 5: Solve for x
x = 4,370,684,747.63/103,132.14 - Step 6: Final answer
x = 42,379.46
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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.