Finding the Fourth Proportional to 136,261.44, 187,879.91 and 93,261.65
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Solution
The fourth proportional to 136,261.44, 187,879.91 and 93,261.65 is: 128,590.96
Step by Step Solution
- Step 1: Write the proportion equation
136,261.44 : 187,879.91 = 93,261.65 : x - Step 2: Convert to fraction form
136,261.44/187,879.91 = 93,261.65/x - Step 3: Cross multiply
136,261.44x = 187,879.91 × 93,261.65 - Step 4: Simplify right side
136,261.44x = 17,521,989,002.74 - Step 5: Solve for x
x = 17,521,989,002.74/136,261.44 - Step 6: Final answer
x = 128,590.96
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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.