Finding the Fourth Proportional to 187,612.70, 258,905.94 and 101,572.58
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Solution
The fourth proportional to 187,612.70, 258,905.94 and 101,572.58 is: 140,170.38
Step by Step Solution
- Step 1: Write the proportion equation
187,612.70 : 258,905.94 = 101,572.58 : x - Step 2: Convert to fraction form
187,612.70/258,905.94 = 101,572.58/x - Step 3: Cross multiply
187,612.70x = 258,905.94 × 101,572.58 - Step 4: Simplify right side
187,612.70x = 26,297,744,303.13 - Step 5: Solve for x
x = 26,297,744,303.13/187,612.70 - Step 6: Final answer
x = 140,170.38
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1.5x scale
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.