Finding the Fourth Proportional to 103,242.98, 154,759.92 and 69,966.44
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Solution
The fourth proportional to 103,242.98, 154,759.92 and 69,966.44 is: 104,878.81
Step by Step Solution
- Step 1: Write the proportion equation
103,242.98 : 154,759.92 = 69,966.44 : x - Step 2: Convert to fraction form
103,242.98/154,759.92 = 69,966.44/x - Step 3: Cross multiply
103,242.98x = 154,759.92 × 69,966.44 - Step 4: Simplify right side
103,242.98x = 10,828,000,657.08 - Step 5: Solve for x
x = 10,828,000,657.08/103,242.98 - Step 6: Final answer
x = 104,878.81
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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.