Finding the Fourth Proportional to 110,956.16, 153,199.68 and 68,572.80
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Solution
The fourth proportional to 110,956.16, 153,199.68 and 68,572.80 is: 94,680.02
Step by Step Solution
- Step 1: Write the proportion equation
110,956.16 : 153,199.68 = 68,572.80 : x - Step 2: Convert to fraction form
110,956.16/153,199.68 = 68,572.80/x - Step 3: Cross multiply
110,956.16x = 153,199.68 × 68,572.80 - Step 4: Simplify right side
110,956.16x = 10,505,331,016.70 - Step 5: Solve for x
x = 10,505,331,016.70/110,956.16 - Step 6: Final answer
x = 94,680.02
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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.