Finding the Fourth Proportional to 98,929.46, 136,516.16 and 63,115.65
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Solution
The fourth proportional to 98,929.46, 136,516.16 and 63,115.65 is: 87,095.45
Step by Step Solution
- Step 1: Write the proportion equation
98,929.46 : 136,516.16 = 63,115.65 : x - Step 2: Convert to fraction form
98,929.46/136,516.16 = 63,115.65/x - Step 3: Cross multiply
98,929.46x = 136,516.16 × 63,115.65 - Step 4: Simplify right side
98,929.46x = 8,616,305,858.33 - Step 5: Solve for x
x = 8,616,305,858.33/98,929.46 - Step 6: Final answer
x = 87,095.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.