Finding the Fourth Proportional to 136,750.08, 188,714.70 and 76,320.06
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Solution
The fourth proportional to 136,750.08, 188,714.70 and 76,320.06 is: 105,321.45
Step by Step Solution
- Step 1: Write the proportion equation
136,750.08 : 188,714.70 = 76,320.06 : x - Step 2: Convert to fraction form
136,750.08/188,714.70 = 76,320.06/x - Step 3: Cross multiply
136,750.08x = 188,714.70 × 76,320.06 - Step 4: Simplify right side
136,750.08x = 14,402,717,226.88 - Step 5: Solve for x
x = 14,402,717,226.88/136,750.08 - Step 6: Final answer
x = 105,321.45
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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.