Finding the Fourth Proportional to 69,106.08, 103,661.28 and 19,186.68
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Solution
The fourth proportional to 69,106.08, 103,661.28 and 19,186.68 is: 28,780.62
Step by Step Solution
- Step 1: Write the proportion equation
69,106.08 : 103,661.28 = 19,186.68 : x - Step 2: Convert to fraction form
69,106.08/103,661.28 = 19,186.68/x - Step 3: Cross multiply
69,106.08x = 103,661.28 × 19,186.68 - Step 4: Simplify right side
69,106.08x = 1,988,915,807.75 - Step 5: Solve for x
x = 1,988,915,807.75/69,106.08 - Step 6: Final answer
x = 28,780.62
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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.